Winter Weather in the Eastern U.S.; Fire Weather in the Southern High Plains
A wintry mix may impact travel across portions of the Ohio Valley, central Appalachians, Mid-Atlantic, and Northeast U.S. today through Tuesday. Gusty winds and low relative humidity will bring elevated to critical fire weather to northeastern New Mexico and southeastern Colorado today and Tuesday. Read More >
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
47°F
8°C
| Humidity | 95% |
| Wind Speed | W 1 MPH |
| Barometer | NA |
| Dewpoint | 46°F (8°C) |
| Visibility | NA |
| Last update | 02 Mar 02:55 PM PST |
Extended Forecast for
2 Miles SSW Clayton CA
Tonight
Low: 48 °F
Mostly Clear
Tuesday
High: 65 °F
Sunny
Tuesday Night
Low: 48 °F
Increasing
CloudsWednesday
High: 62 °F
Becoming
SunnyWednesday Night
Low: 42 °F
Clear
Thursday
High: 63 °F
Sunny
Thursday Night
Low: 47 °F
Clear
Friday
High: 67 °F
Sunny
Friday Night
Low: 50 °F
Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 48. South southwest wind around 7 mph.
Tuesday
Sunny, with a high near 65. West wind 5 to 9 mph.
Tuesday Night
Increasing clouds, with a low around 48. Southwest wind around 11 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 62. West wind 13 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Clear, with a low around 42. West northwest wind 11 to 18 mph, with gusts as high as 31 mph.
Thursday
Sunny, with a high near 63.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 67.
Friday Night
Clear, with a low around 50.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 70.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SSW Clayton CA
37.91°N 121.96°W (Elev. 1299 ft)
37.91°N 121.96°W (Elev. 1299 ft)
12:26 pm PST Mar 2, 2026
5pm PST Mar 2, 2026-6pm PDT Mar 9, 2026
Additional Resources
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