You’ve probably looked at your phone’s weather app three times this morning. If you live in Thousand Oaks, you know the drill. One minute it's basically summer, and the next you're digging for that one heavy sweater you keep for "emergencies." Honestly, the Thousand Oaks 10 day weather forecast is looking like a total rollercoaster right now, especially as we navigate this weird mid-January stretch in 2026.
Right now, things are feeling pretty warm. Like, suspiciously warm for January. We’re currently sitting at $60^{\circ}\text{F}$ on this Saturday night, but the daytime highs are hitting levels that make you forget it’s winter.
The Heat Wave Nobody Asked For
Today, January 17, peaked at a high of $76^{\circ}\text{F}$. That's a solid chunk above our typical January averages. Most people think Southern California is just "sun" all the time, but locals know that when the humidity drops to 26% and the wind starts kicking up from the northeast at 16 mph, we’re dealing with that classic offshore flow.
It’s dry. Really dry.
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Tomorrow, Sunday, January 18, is looking even warmer with a high of $77^{\circ}\text{F}$. If you’re planning a hike at Wildwood or hitting the Los Robles trails, do it early. The sun is going to feel intense, even if the UV index is only a 2. Monday stays the course at $75^{\circ}\text{F}$, making it a perfect, albeit slightly too warm, Martin Luther King Jr. Day.
The Mid-Week Pivot
Here is where the Thousand Oaks 10 day weather forecast gets interesting. Kinda moody, actually.
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By Wednesday, January 21, the ridge of high pressure starts to break down. We drop from the mid-70s to a much more "January-ish" $68^{\circ}\text{F}$. Clouds are going to start rolling in from the south, and the humidity—which has been hovering in the 30s—is going to climb toward 44%.
Then comes Thursday.
If you have outdoor plans on January 22, you might want a backup. We’re looking at a high of $65^{\circ}\text{F}$ with a 70% chance of rain hitting overnight. This isn't just a "maybe" sprinkle; it’s a legitimate shift in the pressure systems. Friday, January 23, keeps the damp vibes going with light rain and a high of only $61^{\circ}\text{F}$.
Why January in T.O. is So Unpredictable
People get frustrated with the forecast here because of the microclimates. One side of the Conejo Grade might be foggy while the other is clear.
- Santa Ana Winds: These northeast winds (like the ones we're seeing today at 16 mph) compress the air as it drops into the valley, heating it up.
- Marine Layer: When that offshore pressure dies, the ocean air rushes back in, bringing that "light rain" forecasted for late next week.
- Elevation: Thousand Oaks sits at a sweet spot where we get the ocean influence but also the valley heat. It's a tug-of-war.
The Long View: January 24 and Beyond
Once that late-week storm clears out, we settle back into a "partly sunny" rhythm. Saturday, January 24, should see us back at $66^{\circ}\text{F}$. By Sunday and Monday (Jan 25-26), we’re looking at highs between $67^{\circ}\text{F}$ and $68^{\circ}\text{F}$.
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It’s basically the "Standard California Winter" setting.
Basically, the next ten days are a sandwich: warm bread on the ends, and a cool, rainy filling in the middle. If you're gardening, hold off on the heavy watering for the next few days; the rain on Thursday night and Friday should do some of the heavy lifting for you.
Actionable Next Steps
- Hydrate your plants now: The dry northeast winds through Tuesday will sap moisture from your soil faster than you think.
- Prep for Thursday rain: Clear your gutters by Wednesday afternoon. A 70% chance of rain in Thousand Oaks often means we get a decent dumping in a short window.
- Dress in layers: With lows hitting $51^{\circ}\text{F}$ and highs hitting $77^{\circ}\text{F}$ in the same 48-hour span, a t-shirt under a light jacket is the only way to survive the day without melting or freezing.
- Monitor the wind: If you’re in a fire-prone area like the edges of the Santa Monica Mountains, keep an eye on those northeast gusts tonight. Even with a 10% precipitation chance, it’s the wind-driven dryness that causes the most trouble this time of year.