Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.
Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >
Current conditions at
SJSU - Mount Diablo Summit Museum Rooftop (SJS02)
Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.NA
28°F
-2°C
| Humidity | 99% |
| Wind Speed | N 0 MPH |
| Barometer | NA |
| Dewpoint | 28°F (-2°C) |
| Visibility | NA |
| Last update | 20 Feb 03:25 AM PST |
Extended Forecast for
4 Miles SSE Clayton CA
Today
High: 42 °F
Partly Sunny
Tonight
Low: 34 °F
Partly Cloudy
Saturday
High: 49 °F
Decreasing
CloudsSaturday Night
Low: 44 °F
Chance Rain
Sunday
High: 58 °F
Chance Rain
Sunday Night
Low: 47 °F
Slight Chance
RainMonday
High: 58 °F
Chance Rain
Monday Night
Low: 53 °F
Rain Likely
Tuesday
High: 57 °F
Rain
Detailed Forecast
Today
Partly sunny, with a high near 42. Southwest wind around 6 mph.
Tonight
Partly cloudy, with a low around 34. South southeast wind 6 to 9 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 49. South southeast wind 11 to 14 mph, with gusts as high as 25 mph.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Partly cloudy, with a low around 44. South southeast wind 16 to 18 mph, with gusts as high as 34 mph.
Sunday
A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 58. South wind 15 to 18 mph, with gusts as high as 33 mph.
Sunday Night
A 20 percent chance of rain before 4am. Mostly cloudy, with a low around 47.
Monday
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 58.
Monday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 53.
Tuesday
Rain. Cloudy, with a high near 57.
Tuesday Night
Rain. Cloudy, with a low around 51.
Wednesday
Rain likely. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 50.
Thursday
A chance of rain. Partly sunny, with a high near 57.
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)
12:32 am PST Feb 20, 2026
10am PST Feb 20, 2026-6pm PST Feb 26, 2026
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