Clayton, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Clayton, CA in one place.
Sunny, with a high near 82. South wind around 12 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Clayton, 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: Sep 16, 2026 12:33 PM PDT.
The active forecast window currently covers Sep 16 to Sep 22, 2026 for Clayton, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 12:33 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Clayton
Tuesday looks like the warmest upcoming period in Clayton at 93 degrees F.
Thursday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Today at about 12 mph S.
The forecast from Sep 16 through Sep 22 stays mostly dry.
Forecast Details
- Last updated
- Sep 16, 2026 12:33 PM PDT
- Coverage
- 8 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
Partly cloudy. Low around 56, with temperatures rising to around 58 overnight. South southeast wind around 10 mph.
Mostly sunny, with a high near 80. South southwest wind 3 to 8 mph.
Clear, with a low around 55. East southeast wind 0 to 3 mph.
Sunny, with a high near 89. North wind 2 to 7 mph.
Clear, with a low around 59.
Sunny, with a high near 90.
Mostly clear, with a low around 60.
Mostly sunny, with a high near 88.
Partly cloudy, with a low around 59.
Sunny, with a high near 90.
Mostly clear, with a low around 60.
Sunny, with a high near 93.
Mostly clear, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 16
|
Sunny
|
82°F |
12 mph
S
|
|
Tonight
Sep 16
|
Partly Cloudy
|
56°F |
10 mph
SSE
|
|
Thursday
Sep 17
|
Mostly Sunny
|
80°F |
3 to 8 mph
SSW
|
|
Thursday Night
Sep 17
|
Clear
|
55°F |
0 to 3 mph
ESE
|
|
Friday
Sep 18
|
Sunny
|
89°F |
2 to 7 mph
N
|
|
Friday Night
Sep 18
|
Clear
|
59°F |
5 mph
SE
|
|
Saturday
Sep 19
|
Sunny
|
90°F |
5 mph
S
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
60°F |
5 mph
SSE
|
|
Sunday
Sep 20
|
Mostly Sunny
|
88°F |
5 mph
S
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
59°F |
5 mph
SSE
|
|
Monday
Sep 21
|
Sunny
|
90°F |
5 mph
S
|
|
Monday Night
Sep 21
|
Mostly Clear
|
60°F |
5 mph
SE
|
|
Tuesday
Sep 22
|
Sunny
|
93°F |
2 to 6 mph
SSW
|
|
Tuesday Night
Sep 22
|
Mostly Clear
|
62°F |
6 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Clayton.