Honestly, if you're looking at the weather 10 day forecast Anaheim CA right now, you might be a little confused. One minute it's basically summer, and the next, you’re looking at a 20-degree temperature drop. Southern California in January is legendary for this kind of mood swing.
Right now, Anaheim is sitting at a crisp 79°F as of Sunday morning, January 18, 2026. It's beautiful out. But don't let that fool you into packing nothing but shorts and flip-flops for your Disneyland trip.
The reality of the next week and a half is a slow slide from "pool weather" back into "wait, where did I put my hoodie?" territory.
The Immediate Outlook: Sun, Heat, and Santa Anas
Today is the peak. We’re hitting a high of 82°F. It’s sunny, dry, and feels incredible. There’s a tiny 10% chance of a stray sprinkle, but mostly it's just that classic California blue sky. The wind is coming out of the North at about 5 mph, which isn't much, but it's enough to keep the air moving.
Tonight? Different story. It drops to 46°F.
That’s a 36-degree swing in a single day. If you’re standing in line for the fireworks at the park, you are going to feel every bit of that chill.
Tomorrow, Monday, January 19, stays warm with a high of 76°F and another low of 46°F. It’s basically a carbon copy of today, just slightly less intense. Tuesday follows suit—mostly sunny, 76°F high, and the overnight low creeps up just a bit to 50°F.
The Mid-Week Shift
Wednesday is when things start to get kinda "gray." The high drops to 73°F, and the clouds start rolling in. We’re looking at a "mostly cloudy" day. It’s the transition period.
Tracking the weather 10 day forecast Anaheim CA
By the time we hit Thursday, January 22, the "winter" vibes return. We’re looking at 71°F. Still nice? Sure. But the humidity is climbing toward 57%, and there’s a 15% chance of rain.
Here is how the rest of the 10-day stretch actually looks:
Friday is the coolest day of the week, topping out at just 68°F with a low of 49°F. Saturday stays right there at 68°F as well. This is the period where you’ll see the most cloud cover and a slightly higher chance of nighttime rain (about 20% on Saturday night).
If you're planning outdoor activities for next Sunday, January 25, the mercury starts to climb back up. Expect a high of 70°F. Monday, January 26, hits 71°F, and by Tuesday, January 27, we’re back to a very comfortable 75°F with partly sunny skies.
What Most Travelers Get Wrong
The biggest mistake people make with the weather 10 day forecast Anaheim CA is ignoring the "RealFeel" vs. the actual temperature. Because the humidity is relatively low (starting at 18% today and hitting maybe 64% by Friday), the shade feels significantly colder than the sun.
Also, those overnight lows of 46°F to 49°F are no joke.
In a city of concrete and theme parks, the heat disappears the second the sun goes down. Most tourists end up buying a $70 souvenir sweatshirt because they didn't believe the forecast.
Why the Wind Matters
We’re seeing some light winds right now, mostly under 6 mph. However, when those winds shift to the Southwest—which they do starting Monday—they bring in that damp, ocean-cooled air. That’s why the temperatures drop toward the end of the week. It’s not a "storm" per se, just the Pacific Ocean reminding us it’s there.
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Actionable Advice for Your Trip
- Layer like a pro. Wear a t-shirt for the 80-degree afternoons, but have a mid-weight jacket or fleece in your bag for the 46-degree nights.
- Check the UV Index. Even when it’s 68°F on Friday, the UV index is still around 3. You can still get a sunburn while feeling "cool."
- Plan indoor activities for Friday/Saturday. If you hate the damp chill, those are the days to hit the indoor museums or longer shows.
- Don't cancel plans over the 15% rain chance. In Anaheim, "15% chance of rain" usually means it might mist for ten minutes and then stop. It’s rarely a washout.
Basically, enjoy the heat while it lasts over the next 48 hours. After that, keep the sweater handy. It’s January in the Pacific Southwest—it’s supposed to be a little unpredictable.
Pack for the 80s, but prepare for the 40s. That's the only way to beat the California winter.