I-5 Weather: Mountain Pass & San Joaquin Valley

Interstate 5 (I-5), a major transportation artery in California, is subject to diverse weather conditions that significantly influence travel. Mountain Pass regions along I-5, especially the Grapevine, often experience severe winter weather, including heavy snowfall and icy conditions. California Highway Patrol (CHP) frequently issues travel advisories and may require chain controls during these periods to ensure safety. Moreover, visibility can be drastically reduced due to dense fog, particularly in the San Joaquin Valley, which impacts driving conditions along I-5.

Ever driven the I-5 in California? It’s like taking a weather rollercoaster from the Oregon border all the way down to Mexico! This isn’t just a road; it’s a vital artery pumping life and commerce through the Golden State. You’re sharing the road with everyone from families on vacation to truckers hauling precious cargo.

But here’s the thing: California’s weather is about as predictable as a toddler with a box of crayons. You can go from sunshine to snow flurries, from scorching heat to pea-soup fog, all within a single day’s drive. It’s wild!

That’s where this guide comes in! We’re here to arm you with the knowledge to navigate the I-5 like a seasoned pro, no matter what Mother Nature throws your way. Whether you’re a seasoned road warrior, a new resident, or part of an industry relying on this crucial route, we’ve got you covered.

And get this: California is a land of microclimates. What’s a microclimate? It’s like a tiny, localized weather system that can be totally different from what’s happening just a few miles away. One area may have a 30-degree difference. Understanding these quirks is key to staying safe and sane on the I-5. So buckle up, because we’re about to dive into the wonderfully weird world of California weather!

California’s I-5: It’s All About the Land, Baby!

Ever wonder why you can be sunbathing in San Diego and, like, five hours later, be dodging snowflakes near Mt. Shasta? Blame (or thank!) California’s seriously dramatic geography. The I-5 isn’t just a road; it’s a front-row seat to a geographical rollercoaster, and that, my friends, is what makes our weather so darn… interesting!

The Great Central Valley: California’s “Hot Box”?

Picture this: a giant, flat bowl nestled between mountains. That’s the Central Valley! It’s California’s agricultural heartland, but it also acts like a trap. Air stagnates, sunshine bakes, and temperatures can soar. Ever driven through Bakersfield in July? Yeah, you know what I’m talking about. It’s all thanks to the Valley’s shape and its effect on air circulation.

Coastal Vibes: Ocean Breeze Makes Everything… Wetter?

Ah, the Pacific. She’s a moody mistress, but she definitely keeps things interesting along the I-5’s coastal stretch. The ocean acts like a giant AC unit (most of the time). It moderates temperatures, meaning cooler summers and warmer winters. Plus, it pumps moisture into the air, leading to our famous (or infamous) coastal fog. Hello, San Francisco!

Mountain Majesty (and Mayhem!): The Range Effect

California’s got mountains. Lots and lots of them. And these aren’t just pretty backdrops; they’re weather-making machines! We’re talking:

• Cascade Mountains and Klamath Mountains : The Cascade Mountains are found in the northern part of the state, closer to the Oregon border. They block some of the cold air from entering. In winter they are full of snow accumulation and affect driving conditions. The Klamath mountains contribute to orographic lift.

• Sierra Nevada: This massive range is a snow magnet. It blocks moisture from reaching Nevada, creating the “Rain Shadow Effect,” and provides most of California’s water supply from snowmelt.

• Tehachapi Mountains, Transverse Ranges, and Peninsular Ranges: These ranges further south create a complex web of microclimates, affecting everything from rainfall to wind patterns. The Tehachapi Mountains are what splits the central valley from the southern area, with increased precipitation during the winter months. The Transverse Ranges are also a barrier to weather patterns, creating a diverse of microclimates along the I-5 corridor. The Peninsular ranges influence weather patterns in San Diego area and moderate temperatures and contribute to local precipitation patterns.

Orographic Lift: Mountains Make Rain (and Snow!)

Here’s the science bit (don’t worry, it’s easy!): When moist air runs into a mountain, it’s forced to rise. As it rises, it cools, condenses, and boom – precipitation! This “orographic lift” is why the windward (the side facing the wind) side of mountains gets drenched, while the leeward (downwind) side stays relatively dry. Think heavy snowfall in the Sierra versus the drier conditions just east of the range.

Desert Heat: Welcome to the Oven!

Venture south along the I-5, and you’ll hit the Southern California deserts. Get ready for extreme temperatures, bone-dry air, and a whole lot of sunshine. The desert’s influence pushes hot, dry air towards the coast, contributing to those sweltering summer days in Los Angeles and beyond. The desert climate contributes to heat waves.

Seasonal Weather Patterns: A Four-Season Journey on the I-5

California’s I-5 isn’t just a road; it’s a seasonal weather rollercoaster! Buckle up as we journey through the year, exploring the unique weather patterns that define this iconic route. From snowy peaks to scorching deserts, the I-5 offers a taste of every season, sometimes all in one drive!

Winter: When the I-5 Transforms into a Winter Wonderland (or Hazard Zone!)

Winter on the I-5 is no joke. We’re talking about a season that can bring everything from blinding snowstorms to pea-soup fogs.

• Winter Storms: Expect frequent and intense storms, especially in the northern sections. These can bring heavy rain, strong winds, and, of course, snow.

• Atmospheric Rivers: These “rivers in the sky” can dump massive amounts of rain, leading to flooding and mudslides. Think Noah’s Ark, but on a California freeway.

• Snowfall: The Sierra Nevada and Cascade Mountains become winter playgrounds, but also potential travel nightmares. Be prepared for chain controls and delays.

• Snow Level Variations: Ever heard someone say the snow level is at 3,000 feet? That’s crucial info! It tells you where the white stuff starts accumulating, affecting road conditions. Understanding snow levels are key to avoiding unexpected white-knuckle driving.

• Road Closures: Unfortunately, winter road closures are a reality. Snow, ice, and accidents can shut down sections of the I-5, so always check conditions before you go.

• Tule Fog: WARNING! This thick, ground-hugging fog can reduce visibility to near zero. It’s most common in the Central Valley and makes driving incredibly dangerous. If you encounter Tule Fog, pull over immediately to a safe location and wait for it to lift. Do not attempt to drive through it.

• Freezing Temperatures: Ice and frost can be treacherous, especially in the northern sections and higher elevations. Be mindful of black ice, which is virtually invisible.

Spring: A Breath of Fresh (and Sometimes Stormy) Air

Spring brings a welcome transition from the wet, wild winter. Think blooming wildflowers and longer days but don’t pack away that umbrella just yet.

• The I-5 experiences a gradual shift from wet to dry conditions. Sunshine becomes more frequent, and temperatures start to climb.

• However, spring can also bring increased thunderstorm activity, particularly in the Central Valley and Southern California. Keep an eye on the sky and be prepared for sudden downpours.

Summer: Sizzling Heat and Desert Dreams (or Nightmares)

Summer on the I-5 can be a scorcher, especially if you’re venturing into the desert regions.

• Extreme Heat: Be prepared for sweltering temperatures, especially in the deserts of Southern California. Stay hydrated and ensure your vehicle is in good working order.

• Diurnal Temperature Range: The desert regions experience huge temperature swings. It can be scorching hot during the day and surprisingly cool at night. Pack layers if you’re planning on camping or traveling through these areas.

Autumn: A Golden Transition (with a Fiery Side)

Autumn is a beautiful time to travel the I-5, with changing leaves and cooler temperatures. But it’s also a season of transition, with increased fire risk.

• The weather shifts back to cooler, wetter conditions. Expect more frequent rain and lower temperatures.

• However, autumn also brings an increased risk of fire weather due to dry vegetation and offshore winds like the Santa Anas. Be aware of fire danger and avoid activities that could spark a wildfire.

Rainfall: Riding the Rainbow (or Dodging the Downpour) Along the I-5

Let’s talk rain, baby! The I-5 isn’t just a ribbon of asphalt; it’s a rain gauge on steroids. You’ll go from “What drought?” in the south to “Noah, where’s that ark?” up north. Southern California gets a pittance compared to its northern cousins. Think of it this way: San Diego sips, while Redding gulps. Why? Geography, my friends! Those mountain ranges we talked about earlier? They’re rain magnets. As moist air hits those slopes, it’s forced upwards, cools, and BAM! Precipitation. The further north you go, the more mountain ranges you encounter. So, pack your umbrella and check those wiper blades, especially if you’re heading to the Emerald Triangle.

Average Temperatures: From Beach Bods to Blizzard Boots

Forget consistent temps – the I-5 is a temperature rollercoaster. You can leave San Diego basking in sunshine and arrive in Weed needing a parka (yes, that’s a real place, and yes, it gets cold). In summer, you’ll be broiling in the Central Valley, where triple-digit days are just another Tuesday. Head up north, and you’ll find blessed relief. Winter? Get ready for frosty mornings in the north and mild days in the south. It’s all about those microclimates again. Coastal areas stay relatively moderate, while inland valleys become temperature extremes. So, layer up or peel off, depending on your latitude!

Wind Advisories and High Wind Warnings: Hold on to Your Hats (and Your Rigs!)

The I-5 isn’t always a gentle breeze. Sometimes, it’s a wind tunnel from heck. Wind advisories and high wind warnings are common, especially in mountainous areas and passes. These winds can be particularly dangerous for high-profile vehicles like trucks and RVs. Imagine a gust hitting your RV like a rogue wave! Not fun. Keep an eye on weather reports and heed those warnings. If it’s howling, pull over and wait it out. Your safety (and your vehicle’s paint job) depends on it.

Santa Ana and Diablo Winds: When California Gets Angry

These are the rock stars of California’s wind scene – and not in a good way. Santa Ana winds are hot, dry winds that blow from the deserts of Southern California towards the coast. Diablo winds are their Northern California cousins, roaring from the interior towards the Bay Area. Both are caused by high-pressure systems over the Great Basin, creating fierce winds that can fan wildfires into infernos. They also stir up dust storms and generally make life miserable. If you see “Red Flag Warning,” take it seriously. The fire danger is extreme.

Gusts and Crosswinds: The Invisible Hand (That Shoves Your Car)

Even without full-blown wind advisories, gusts and crosswinds can make driving on the I-5 dicey. These sudden bursts of air can push your vehicle unexpectedly, especially if you’re driving a larger vehicle. Be prepared to grip the steering wheel tight and slow down. Trucks and RVs are particularly vulnerable, but even a small car can be affected. Keep both hands on the wheel and anticipate those gusts, especially in open areas and near overpasses.

Coastal Fog: When the World Disappears

Ah, coastal fog – that eerie, ethereal blanket that descends upon the California coast. It’s beautiful… until you’re trying to drive through it. Coastal fog, especially near the Bay Area and along the Central Coast, can reduce visibility to near zero. It rolls in quickly and unexpectedly, turning a sunny day into a scene from a horror movie. Slow down, turn on your headlights, and increase your following distance. Fog lights can help, but remember, they’re not magic. If the fog is too thick, find a safe place to pull over and wait for it to lift. Better safe than sorry!

Environmental and Economic Impacts: Weather’s Ripple Effect Along the I-5

Okay, folks, let’s talk about how Mother Nature’s mood swings along the I-5 aren’t just about whether you need sunglasses or an umbrella. We’re diving into the real-world impacts – the kind that affect our wallets and our world. California’s weather is not just a topic for small talk; it’s a major player in the state’s economy and environment. Buckle up; it’s going to be an interesting ride!

Fire Weather: When Conditions Get Critical

You know that golden, sun-kissed California look? Sometimes, it’s a little too golden – especially when dry vegetation meets high winds and low humidity. That, my friends, is fire weather in a nutshell. These are the conditions that turn a spark into a raging inferno, and the effects are widespread. We’re talking property damage, habitat loss, and the disruption of, well, pretty much everything.

Air Quality Impacts: Breathing Easy (or Not)

When wildfires rage, the air quality takes a nosedive. It’s not just about smoky skies; it’s about the health risks that come with breathing in all that particulate matter. Those with respiratory issues? They’re hit the hardest. And let’s not forget about those pesky smoke inversions that trap pollutants near the ground, making things even worse. Nobody wants to breathe soup, folks!

Flash Floods and River Flooding: When Water Runs Wild

On the flip side, all that lovely California sunshine sometimes takes a break and decides to dump buckets of rain all at once, or rapidly melts snowpack. The result? Flash floods and river flooding. Certain areas along the I-5 are particularly vulnerable, turning roads into rivers and causing all sorts of chaos. Be aware of those low-lying areas!

Agriculture: Farming on the Edge

Ah, agriculture, the backbone of California’s economy. But guess what? It’s incredibly sensitive to temperature extremes, frost, and water availability. A sudden cold snap can ruin crops, while drought can leave fields barren. It’s a constant balancing act for farmers, who are always at the mercy of the weather gods.

Tourism: Sun, Sand, and…Storms?

Tourism is another biggie in California, but weather can make or break a vacation. Extreme heat can drive tourists away from desert destinations, while heavy snow can shut down ski resorts. Even a little coastal fog can put a damper on beach days.

Power Grid: Keeping the Lights On (Hopefully)

Extreme weather events like heat waves and wildfires can put a serious strain on the power grid. When everyone cranks up their AC during a heatwave, the system can get overloaded, leading to blackouts. And wildfires can damage power lines, leaving communities in the dark.

Water Resources: The Liquid Gold

Speaking of snow, let’s talk about the Sierra Nevada snowpack. It’s essential for California’s water supply, acting like a giant reservoir that slowly releases water throughout the year. But with climate change, that snowpack is shrinking, threatening our water resources.

Unlocking the Secrets of California’s Wild Weather: A Peek Behind the Meteorological Curtain

Ever wonder why you can be basking in sunshine one minute and dodging raindrops the next while cruising down the I-5? It’s not just California being quirky (though it certainly is!), but a fascinating interplay of meteorological forces at work. Let’s pull back the curtain and get to know the major players that shape the Golden State’s weather along this iconic highway.

High-Pressure Systems, Low-Pressure Systems, Troughs, and Ridges: The Weather’s Puppet Masters

Think of these as the steering wheels of our atmospheric car. High-pressure systems generally bring settled, sunny weather – picture sinking air, suppressing cloud formation. Low-pressure systems, on the other hand, are the party animals, bringing in clouds, rain, and sometimes even a full-blown weather tantrum.

Troughs are elongated areas of low pressure, often bringing unsettled weather as they swing through. And ridges? They’re like the chill cousins, areas of high pressure that promise tranquility and clear skies. Understanding where these are located is like reading the weather’s roadmap!

Cold Fronts and Warm Fronts: The Temperature Tag-Team

Imagine two air masses with different personalities colliding. That’s essentially what fronts are! Cold fronts are the brisk, assertive types, pushing warmer air out of the way, often leading to a burst of showers or thunderstorms followed by cooler temperatures. Warm fronts are more mellow, gently gliding over colder air, leading to gradual warming and potentially drizzly conditions. Keep an eye on those fronts, and you’ll know when to swap your shades for an umbrella or vice-versa.

The Jet Stream: California’s Atmospheric Rollercoaster

This high-altitude river of air is a major player in steering storms across the Pacific and into California. Think of it as a rollercoaster track for weather systems. When the jet stream dips south, we’re more likely to see wet and stormy conditions. When it shifts north, we’re in for drier weather. This dynamic jet stream dictates the weather patterns.

Microclimates: California’s Boutique Weather Experiences

California’s terrain is so diverse it’s almost showing off. This leads to microclimates – hyper-localized weather patterns influenced by everything from elevation and slope to proximity to the coast. You might find yourself driving through a foggy patch one minute and then popping out into brilliant sunshine just a few miles later.

El Niño/La Niña: The Big Picture Players

These naturally occurring climate patterns in the Pacific Ocean can have a significant impact on California’s weather, influencing precipitation and temperature trends across seasons. El Niño years often bring wetter conditions to Southern California, while La Niña years can lead to drier conditions, especially in the northern part of the state. These are like the long-term trends influencing whether we’re in for a drought or a deluge.

Climate Change: The Long Game

Climate change is increasingly influencing California’s weather patterns, with trends toward higher average temperatures, altered precipitation patterns, and more frequent extreme weather events. Be prepared for more intense heat waves, prolonged droughts, and increased wildfire risk.

Staying Informed: Agencies Monitoring I-5 Weather

Alright, buckle up buttercups! Knowing what the weather’s really doing out there on the I-5 is half the battle. Luckily, you’re not alone in this meteorological mystery. A whole crew of agencies are keeping their eyes on the skies (and roads) so you don’t have to guess if that’s just a cloud or the start of a biblical downpour. Think of them as your weather-wise posse, ready to keep you safe and sound.

The National Weather Service (NWS): Your Go-To Weather Guru

First up, we have the National Weather Service (NWS). These are the folks in the know when it comes to all things weather. They’re not just guessing; they’re crunching numbers, analyzing data, and generally being the smarty-pants of the weather world.

• Forecasting Fanatics: They’re all about giving you the heads-up on what’s coming, from sunshine and rainbows to torrential rain and snowmageddon.
• Alert and Warning Whizzes: When things get dicey, the NWS blasts out alerts and warnings faster than you can say “Is that hail?!” Think flood warnings, high wind advisories, and everything in between.
• Information Central: Their website is your treasure trove of weather knowledge. Maps, forecasts, discussions… it’s all there. Bookmark it, live it, love it.

California Highway Patrol (CHP): Keeping Order on the Roads

Next, say hello to the California Highway Patrol (CHP). They’re not meteorologists, but they’re on the front lines, dealing with the real-world impacts of whatever Mother Nature throws down.

• Traffic Alert Titans: Got a pile-up because of pea-soup fog? CHP will let you know. They’re your source for real-time traffic alerts, keeping you from driving head-first into a disaster.
• Road Closure Rangers: Snow-covered passes? Flooded highways? CHP has the authority to shut ’em down for your own good. Listen up; they’re not doing it for fun.
• Safety Saviors: Beyond just closures, they offer safety advisories and tips. Pay attention; it could save your bacon.

Caltrans: Masters of the Road

Then, there’s Caltrans, the wizards of the road itself. They’re the ones out there patching potholes, plowing snow, and generally keeping the I-5 from falling apart.

• Maintenance Mavericks: They’re on it with road maintenance, ensuring things are as smooth and safe as possible (even when the weather’s trying its darndest to ruin things).
• Snow Removal Rockstars: When the white stuff falls, these are the heroes behind the plows, battling the blizzard to keep those mountain passes open.
• Road Closure Reality-Checkers: Caltrans works hand-in-hand with CHP, providing the nitty-gritty details on why a road’s closed and when it might reopen.

Air Quality Management Districts: Breathing Easy (Hopefully)

Finally, don’t forget the Air Quality Management Districts. In California, where wildfires and inversions can turn the air toxic, these guys are crucial.

• Air Quality Aces: They monitor the air, keeping tabs on pollutants and nasty stuff that can make you cough and wheeze.
• Alert Alarms: When the air quality takes a nosedive (thanks, wildfire smoke!), they issue alerts so you know to stay inside, crank up the AC, and binge-watch Netflix instead of breathing poison.

So there you have it! With these agencies on your side, navigating the I-5’s weather woes becomes a whole lot less daunting. Stay informed, stay safe, and happy travels!

Regional Weather Spotlights: Navigating Key I-5 Cities

Okay, buckle up, road trippers! We’re about to zoom in on some of the major cities along the I-5 and dish out the down-low on their specific weather quirks. Think of this as your cheat sheet to avoid turning your dream vacation into a soggy, sunburnt, or downright foggy nightmare.

Redding: Where Summer Sizzles and Winter Roars

Ah, Redding! This northern gem is known for its stunning natural beauty, but don’t let that fool you – the weather here plays hardball. Summers are scorching, like “fry an egg on the sidewalk” scorching. We’re talking consistent temperatures in the triple digits, so pack your sunscreen, hats, and a serious thirst for lemonade. Winters, on the other hand, can be surprisingly stormy. You’ll see plenty of rain and even snow, especially in the surrounding mountains. Keep an eye on those weather reports!

Sacramento: Fog, Heat, and Everything In Between

Welcome to Sacramento, the capital of California and a place where the weather keeps things interesting, to say the least. The big baddie here is Tule fog, which can blanket the region in the late fall and winter, reducing visibility to near zero. Seriously, folks, it’s like driving in a cloud of pea soup. Then comes summer, and BAM! Sacramento transforms into a furnace. Just like Redding, expect a relentless barrage of hot days. The delta breeze offers some relief in the evenings, but during the day, it’s all about finding shade and staying hydrated.

Stockton: Valley Life and Agricultural Realities

Cruising further south, we hit Stockton, right in the heart of the Central Valley. This area is all about agriculture, and the weather plays a starring role. Stockton sees hot, dry summers that are perfect for growing crops (though tough on everyone else). Winters are cooler and wetter, providing essential water for the region. However, these temperature extremes can pose challenges for farmers. Frost in the winter can damage crops, and summer heatwaves can stress livestock and workers.

Los Angeles: Sunshine, Smog, and Santa Ana Winds

Ah, L.A.! The City of Angels. It’s known for movie stars and traffic jams, but also for its unique weather patterns. Generally, the weather is mild and sunny, but there are exceptions. Coastal fog, especially in the mornings, can be a real buzzkill if you’re planning a beach day. Then, you’ve got the infamous Santa Ana winds. These hot, dry winds from the desert can turn L.A. into a tinderbox, increasing the risk of wildfires and creating some truly gnarly driving conditions.

San Diego: “America’s Finest Weather”… Mostly

Last but not least, we have San Diego. It is where the sun almost always shines and the weather’s usually pretty darn pleasant. Sure, it can get a bit chilly in the evenings, but overall, San Diego lives up to its reputation for fantastic climate. However, even paradise has its quirks. San Diego can experience heat waves that push temperatures into the uncomfortable zone, and occasionally, the region gets hit by unseasonable rain. So, while you’re likely to have perfect weather, it’s always wise to check the forecast before you go.

Safety and Preparedness: Your Checklist for I-5 Travel

Okay, folks, let’s talk about how to not become a statistic on the I-5! California’s weather can be as unpredictable as your uncle at Thanksgiving dinner, so being prepared is key. Whether you’re a seasoned road warrior or a newbie hitting the highway, these tips will keep you safe and sound—and maybe even entertained—on your journey.

Driving Like a Pro: Weather Edition

• Rain, Rain, Go Away (But if it Doesn’t…): Ever hydroplaned? It’s not as fun as it sounds. Slow down, increase your following distance, and make sure your tires have decent tread. Turn on your headlights (it’s the law in California!) and don’t use cruise control – because who’s in control then, really?

• Snow? Time for Slow!: If you see snow, pretend you’re driving a snail. Seriously. Reduce your speed, use lower gears, and brake gently. And for goodness’ sake, make sure you have chains if you’re heading into the mountains – those troopers don’t mess around.

• Fogzilla: Tule fog is no joke. It can turn visibility to near zero faster than you can say “Where’d the road go?” If you encounter fog, reduce speed immediately, turn on your low beams (high beams reflect back into your eyes, making things worse), and use your windshield wipers. If it gets too thick, pull over to a safe spot completely off the road and wait it out. Don’t be a hero.

• High Winds: Hold on Tight!: Those gusts can be a real pain, especially if you’re driving a high-profile vehicle like a truck or RV. Reduce your speed, keep a firm grip on the steering wheel, and be prepared for sudden gusts. Think of it as your workout for the day.

Stay in the Know: Your Weather Intel

• Apps and Websites: Your Weather BFFs: Download a reliable weather app like the National Weather Service (NWS) app. Check the forecast before you go, and keep an eye out for alerts and warnings along the way. The NWS website is also a treasure trove of info.
• Local News: Your Insider Scoop: Tune into local news or radio stations for real-time updates on road conditions and closures. They often have reporters on the ground giving you the lowdown.
• CHP and Caltrans: The Official Word: The California Highway Patrol (CHP) and Caltrans are your go-to sources for traffic alerts, road closures, and other safety advisories. Check their websites or social media feeds for the latest info.

Emergency Preparedness: Because Life Happens

• Safety Kit: Your Road Trip Survival Pack: Every car should have an emergency kit. Include things like:
  • Water (at least a gallon per person)
  • Non-perishable food (granola bars, nuts, etc.)
  • First-aid kit
  • Jumper cables
  • Flashlight with extra batteries
  • Blanket
  • Warm clothes
  • Basic tools (wrench, screwdriver, pliers)
  • A shovel is also a plus if you anticipate snow.
• Alternative Routes: Plan B is Your Best Friend: Before you hit the road, scout out alternative routes in case of road closures or heavy traffic. A little planning can save you a whole lot of headache.
• Communication is Key: Make sure your cell phone is charged, and consider bringing a portable charger. Let someone know your route and estimated arrival time, and check in regularly.

So there you have it! With a little preparation and a dash of common sense, you can conquer the I-5 like a true Californian. Now go forth, drive safely, and remember – the journey is just as important as the destination!

So, there you have it – a quick peek at what the weather’s doing around the I-5 in California. Whether you’re hitting the road or just curious, hopefully, this gives you a better idea of what to expect. Safe travels and enjoy the California sunshine (or, you know, whatever weather you get!).