Severe Thunderstorms and Heavy Rain Across the Central US; Wintry Mix in the Northern Plains and Northeast

Severe thunderstorms and flash flooding are possible across the central U.S. through Saturday. Large hail, damaging winds, and tornadoes are all possible. There is an increased threat for wildfire development in the southern to central High Plains. A wintry mix of snow, sleet and freezing rain are forecast across portions of the northern Plains and central New England into early Friday morning. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

43°F

6°C

Humidity 53%
Wind Speed NNW 19 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 05 Mar 11:25 PM PST
Extended Forecast for

4 Miles S Clayton CA

  • Tonight

    Tonight: Mostly clear, with a low around 51. North wind 18 to 20 mph, with gusts as high as 34 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. North wind 18 to 21 mph, with gusts as high as 31 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54. North wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74. North northeast wind 15 to 17 mph, with gusts as high as 29 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57. North wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 51. North wind 18 to 20 mph, with gusts as high as 34 mph.
Friday
Sunny, with a high near 66. North wind 18 to 21 mph, with gusts as high as 31 mph.
Friday Night
Clear, with a low around 54. North wind 14 to 16 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 74. North northeast wind 15 to 17 mph, with gusts as high as 29 mph.
Saturday Night
Clear, with a low around 57. North wind 8 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 78.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
11:16 pm PST Mar 5, 2026
11pm PST Mar 5, 2026-6pm PDT Mar 12, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database