Thornton, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Thornton, CA in one place.
Sunny, with a high near 68.
Local Weather Overview
This forecast page for Thornton, 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: Apr 14, 2026 2:55 AM PDT.
The active forecast window currently covers Apr 16 to Apr 20, 2026 for Thornton, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 16 to Apr 20, 2026
- Latest sync
- Apr 14, 2026 2:55 AM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Thornton
Saturday looks like the warmest upcoming period in Thornton at 75 degrees F.
Thursday Night is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Thursday at about 6 to 16 mph NW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 14, 2026 2:55 AM PDT
- Coverage
- 5 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- Radar station
- KDAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 43.
Sunny, with a high near 73.
Partly cloudy, with a low around 43.
Mostly sunny, with a high near 75.
Mostly cloudy, with a low around 48.
A chance of rain after 11am. Partly sunny, with a high near 73.
A chance of rain. Mostly cloudy, with a low around 48.
A chance of rain. Mostly sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 16
|
Sunny
|
68°F |
6 to 16 mph
NW
|
|
Thursday Night
Apr 16
|
Clear
|
43°F |
10 to 15 mph
NNW
|
|
Friday
Apr 17
|
Sunny
|
73°F |
6 to 10 mph
NNW
|
|
Friday Night
Apr 17
|
Partly Cloudy
|
43°F |
2 to 6 mph
WSW
|
|
Saturday
Apr 18
|
Mostly Sunny
|
75°F |
5 mph
W
|
|
Saturday Night
Apr 18
|
Mostly Cloudy
|
48°F |
6 mph
WSW
|
|
Sunday
Apr 19
|
Chance Light Rain
|
73°F |
3 to 9 mph
SW
|
|
Sunday Night
Apr 19
|
Chance Light Rain
|
48°F |
6 to 9 mph
WSW
|
|
Monday
Apr 20
|
Chance Light Rain
|
67°F |
6 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thornton.