Thermalito, CA Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Thermalito, CA in one place.
Clear. Low around 50, with temperatures rising to around 52 overnight. South southeast wind around 8 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Thermalito, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 19, 2026 4:29 AM PDT.
The active forecast window currently covers Oct 19 to Oct 25, 2026 for Thermalito, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 19 to Oct 25, 2026
- Latest sync
- Oct 19, 2026 4:29 AM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Thermalito
Monday looks like the warmest upcoming period in Thermalito at 72 degrees F.
Friday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Monday at about 9 mph SSE.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 19, 2026 4:29 AM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- Radar station
- KBBX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy smoke after 2pm. Sunny. High near 72, with temperatures falling to around 70 in the afternoon. South southeast wind around 9 mph, with gusts as high as 18 mph.
Patchy smoke before 8pm. Mostly cloudy. Low around 47, with temperatures rising to around 49 overnight. Southeast wind 2 to 6 mph.
Patchy smoke between 4pm and 5pm, then a slight chance of rain. Mostly cloudy, with a high near 70. West northwest wind around 3 mph. Chance of precipitation is 20%.
A chance of rain. Mostly cloudy, with a low around 49. North northwest wind 0 to 3 mph. Chance of precipitation is 40%.
A chance of rain. Mostly cloudy, with a high near 72. Chance of precipitation is 40%.
A chance of rain. Mostly cloudy, with a low around 48.
A chance of rain. Partly sunny, with a high near 68.
A slight chance of rain before 11pm. Partly cloudy, with a low around 45.
Sunny, with a high near 71.
Mostly clear, with a low around 42.
A slight chance of rain after 5pm. Mostly sunny, with a high near 71.
A chance of rain. Partly cloudy, with a low around 44.
A chance of rain. Mostly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 19
|
Clear
|
50°F |
8 mph
SSE
|
|
Monday
Oct 19
|
Sunny then Patchy Smoke
|
72°F |
9 mph
SSE
|
|
Monday Night
Oct 19
|
Patchy Smoke then Mostly Cloudy
|
47°F |
2 to 6 mph
SE
|
|
Tuesday
Oct 20
|
Mostly Cloudy then Slight Chance Light Rain
|
70°F |
3 mph
WNW
|
|
Tuesday Night
Oct 20
|
Chance Light Rain
|
49°F |
0 to 3 mph
NNW
|
|
Wednesday
Oct 21
|
Chance Light Rain
|
72°F |
5 mph
W
|
|
Wednesday Night
Oct 21
|
Chance Light Rain
|
48°F |
1 to 5 mph
S
|
|
Thursday
Oct 22
|
Chance Light Rain
|
68°F |
5 mph
SSE
|
|
Thursday Night
Oct 22
|
Slight Chance Light Rain then Partly Cloudy
|
45°F |
1 to 5 mph
E
|
|
Friday
Oct 23
|
Sunny
|
71°F |
2 to 8 mph
NNW
|
|
Friday Night
Oct 23
|
Mostly Clear
|
42°F |
1 to 6 mph
NNE
|
|
Saturday
Oct 24
|
Mostly Sunny then Slight Chance Light Rain
|
71°F |
7 mph
SSE
|
|
Saturday Night
Oct 24
|
Chance Light Rain
|
44°F |
2 to 7 mph
ESE
|
|
Sunday
Oct 25
|
Chance Light Rain
|
70°F |
5 to 8 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thermalito.