Honestly, if you're living in or just passing through Tracy, California right now, you know the drill. It's January. The Tule fog is basically a permanent neighbor, and the air has that specific "moderately chilly" bite that makes you question if your light jacket is actually doing anything.
Everyone checks the tracy 10 day weather looking for one thing: rain. We’re in that weird winter pocket where the sky looks like a wet wool blanket, but the ground stays surprisingly dry.
Right now, as of Saturday, January 17, 2026, we are looking at a current temperature of 44°F with a humidity level sitting at a heavy 87%. It's damp. It's gray. But surprisingly, the "big storm" everyone keeps whispering about isn't really showing up on the radar for the next week and a half.
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The 10-Day Reality Check: No, You Probably Don't Need an Ark
People see "mostly cloudy" and "10% chance of rain" and start cancelling patio plans. Don't.
Basically, the window from January 17 through January 26 is looking incredibly consistent. We are stuck in a temperature loop. Most days are topping out between 57°F and 60°F. The nights? They’re hovering in that 40°F to 44°F range. It’s the definition of "bring a sweater, but you might take it off at 2 PM."
Here is the actual vibe for the next several days:
Today, Saturday, January 17, we’re peaking at 57°F. It’s cloudy. It feels like it should rain, but the chance is only 10%. It’s more of a "misty windshield" situation than a downpour.
Tomorrow, Sunday, January 18, things brighten up a tiny bit. We hit 60°F. It’s partly sunny, which in Tracy-speak usually means the sun is trying its best to burn through the Central Valley haze.
Monday and Tuesday (Jan 19-20) are actually looking like the winners of the week. Highs of 58°F and 57°F respectively, with actual sunny conditions. If you’ve been waiting to wash the car or finally deal with those leaves in the gutter, that’s your window.
Why the Fog Matters More Than the Rain
In Tracy, the "weather" isn't just about what's falling from the sky; it's about the visibility. With humidity hitting 80-85% most nights this week, the Tule fog is the real boss of the 580 and 205.
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Tuesday, January 20, is a perfect example. While the day is sunny, the humidity jumps to 85%. That's a recipe for pea-soup conditions during the morning commute. If you're heading toward the Altamont, give yourself an extra 15 minutes. Seriously.
Tracy 10 Day Weather: The Breakdown
Looking further out, the pattern doesn't break much.
- Wednesday, Jan 21: Partly sunny, 58°F high, 42°F low.
- Thursday, Jan 22: Back to cloudy, 57°F high.
- Friday, Jan 23: Partly sunny, 57°F high.
- The Weekend (Jan 24-25): We stay in that 56°F to 57°F range. Mostly cloudy.
By Monday, January 26, we might see a slight bump back to 60°F, but it stays overcast. The rain chance through this entire period never really breaks past that 10% mark. It’s a dry January stretch, which is great for outdoor chores but maybe not so great for the local water table.
What to Wear (The Tracy Survival Kit)
Since we aren't dealing with sub-zero temps or torrential rain, dressing for the tracy 10 day weather is all about the "Tracy Layering System."
- The Base: A standard T-shirt. You’ll need this when the sun hits at 1 PM and the car gets hot.
- The Mid: A hoodie or a light fleece. This stays on for 80% of the day.
- The Shell: A windbreaker or light denim jacket. The wind is coming from the North/Northeast at a gentle 2-5 mph this week, but it’s enough to cut through a single layer.
Actionable Tips for This Week
Don't let the "mostly cloudy" forecast keep you cooped up.
Plan your outdoor work for Monday or Tuesday. These are the only days with "sunny" labels and lower humidity (around 73% on Monday). It’s the best time to handle anything that needs to stay dry.
Check your tires. Cold mornings (40°F) cause air pressure to drop. If your "low tire" light hasn't come on yet, it probably will by Tuesday morning when the temp hits its weekly low.
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Watch the UV index. Even when it’s 57°F and "partly sunny" on Sunday, the UV index hits a 2. It’s low, but if you’re out hiking the Carnegie SVRA or walking the Joe Wilson Trail for three hours, you’ll still feel it.
Manage your expectations for the commute. High humidity (reaching 87% tonight) plus low wind (only 3 mph) equals stagnant air. Expect haze and slow-moving traffic on the 11th Street corridor and the 205 interchange through the weekend.
The big takeaway? Tracy is staying cool, gray, and mostly dry for the foreseeable future. It’s perfect "pajamas and coffee" weather, but just clear enough to get some yard work done if you pick the right day.
Keep your headlights on in the fog and your layers handy.