Tracy is kind of an anomaly. Most people driving through the Altamont Pass think they know exactly what they’re getting—wind, more wind, and maybe a little Central Valley heat. But when you actually look at the weather Tracy CA 10 day forecast right now, things are a lot more nuanced than just "standard California sunshine."
Honestly, if you're planning a week here in late January, you've got to be ready for the "Valley Gloom" to fight it out with some surprisingly mild afternoons.
The Current Breakdown
Right now, as of Saturday, January 17, 2026, it's a chilly 43°F outside. It's night, it's partly cloudy, and the humidity is sitting heavy at 87%. You can feel that dampness in the air.
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If you're waking up today, expect it to stay pretty gray. We’re looking at a cloudy Saturday with a high of 57°F and a low of 41°F. There is a slight 10% chance of rain, but mostly it’s just going to be one of those "sweater and coffee" kind of days.
Why the Weather Tracy CA 10 Day Forecast is Looking Different This Year
We often hear about the extremes, but this upcoming week is remarkably steady. It’s basically a parade of mid-to-high 50s.
Tomorrow, Sunday, January 18, actually looks like the winner of the week. We’re hitting a high of 60°F. It’ll be partly sunny, which, let’s be real, is a massive upgrade over today’s solid cloud cover. The low will hover around 43°F.
Mid-Week Reality Check
Don't get too used to the sun. Monday drops back to 58°F, and Tuesday hits 57°F with "mostly cloudy" skies returning.
The interesting part? The wind is virtually non-existent. Usually, Tracy is like a wind tunnel, but the forecast shows speeds of only 2 to 4 mph coming from the north and northeast.
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That lack of wind is a double-edged sword. No wind means it doesn't feel as bitingly cold, but it also means the Tule fog—that thick, "can’t-see-your-own-hood" Central Valley fog—is much more likely to settle in and stay for dinner.
The Specifics You Need
If you're a data person, here’s how the next few days actually look:
- Monday (Jan 19): Sunny (finally!) with a high of 58°F and a low of 41°F. Humidity is dropping to 72%, so it’ll feel crisp.
- Tuesday (Jan 20): Mostly cloudy. High 57°F, low 40°F. This is actually the coldest night in the current 10-day stretch.
- Wednesday (Jan 21): Partly sunny. High 57°F, low 42°F.
- Thursday (Jan 22): Mostly cloudy again. High 56°F, low 42°F.
Notice a pattern? It’s a flatline. In a world of wild weather swings, Tracy is currently the king of consistency.
What Most People Get Wrong About Tracy Winters
Most Californians think the Valley is just "dry." But in January, Tracy is actually pretty humid. We’re looking at humidity levels between 72% and 88% all week.
This is what local farmers and old-timers call "good moisture," even if it’s not dumping rain. It keeps the soil from drying out, but for you, it means your hair is going to do whatever it wants and your windshield will definitely be frosted or fogged most mornings.
The UV Factor
Even when it’s 57°F, the UV index is hovering around 1 or 2. You probably won’t get a sunburn, but the sun is still strong enough to peek through those clouds.
Rain Chances: Fact vs. Fiction
You might see "10% chance of rain" on almost every day of the weather Tracy CA 10 day forecast.
Don't cancel your outdoor plans yet.
In Tracy speak, 10% usually means "it might mist on your windshield for three minutes while you're at the Safeway on 11th Street." It’s rarely a washout this time of year unless a major atmospheric river is aimed right at us. The current data shows the highest precipitation chance is only 10% through next Monday, January 26.
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Expert Insights for Navigating Tracy This Week
According to historical data from sources like WeatherSpark and the National Weather Service, January is typically Tracy’s wettest month, averaging about 2.82 inches of rain.
However, 2026 is trending a bit drier and warmer than the 30-year average. We're seeing highs in the high 50s when the "normal" high for mid-January is closer to 54°F.
Practical Survival Steps
- Layers are your best friend: When it’s 41°F at 6:00 AM and 60°F at 2:00 PM, a heavy parka is a mistake. Go with a light down vest or a medium jacket you can shed.
- Watch the Fog: With wind speeds at a measly 2-3 mph, the San Joaquin Valley fog is going to be stubborn. If you’re commuting toward Livermore or Stockton, give yourself an extra 15 minutes.
- Hydrate your skin: High humidity sounds like it would keep you moisturized, but the "cool-humid" combo in the Valley can actually be pretty harsh on your skin.
By Sunday, January 25, the temps stay in that 55°F to 58°F range. It’s stable. It’s predictable. It’s classic Tracy winter.
Next Steps for You
Check your tire pressure. Cold morning snaps in the low 40s often trigger those annoying "low pressure" sensors. Also, keep an eye on the Tuesday morning low (40°F)—it's the most likely time for some light frost on the grass.