Severe Thunderstorms and Critical Fire Weather Wednesday
Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
66°F
19°C
| Humidity | 6% |
| Wind Speed | SW 19 MPH |
| Barometer | NA |
| Dewpoint | -1°F (-18°C) |
| Visibility | NA |
| Last update | 12 May 04:45 PM PDT |
Extended Forecast for
4 Miles SSE Clayton CA
Tonight
Low: 54 °F
Partly Cloudy
Wednesday
High: 59 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Thursday
High: 72 °F
Sunny
Thursday Night
Low: 54 °F
Clear
Friday
High: 72 °F
Sunny
Friday Night
Low: 52 °F
Clear
Saturday
High: 73 °F
Sunny
Saturday Night
Low: 51 °F
Mostly Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 54. West wind 15 to 18 mph, with gusts as high as 33 mph.
Wednesday
Sunny, with a steady temperature around 59. West wind 13 to 21 mph, with gusts as high as 39 mph.
Wednesday Night
Mostly clear, with a low around 48. Southwest wind 9 to 13 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 72. West wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Clear, with a low around 54. Southwest wind around 14 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 72.
Friday Night
Clear, with a low around 52.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 78.
Sunday Night
Clear, with a low around 57.
Monday
Sunny, with a high near 85.
Monday Night
Clear, with a low around 58.
Tuesday
Sunny, with a high near 85.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SSE Clayton CA
37.87°N 121.92°W (Elev. 2818 ft)
37.87°N 121.92°W (Elev. 2818 ft)
2:06 pm PDT May 12, 2026
7pm PDT May 12, 2026-6pm PDT May 19, 2026
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