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

50°F

10°C

Humidity 43%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 05 Mar 03:05 PM PST
Extended Forecast for

2 Miles SSW Clayton CA

  • Tonight

    Tonight: Clear, with a low around 50. Breezy, with a north northeast wind 14 to 22 mph, with gusts as high as 44 mph.

    Low: 50 °F

    Clear then
    Clear and
    Breezy

  • Friday

    Friday: Sunny, with a high near 69. North wind 15 to 21 mph, with gusts as high as 34 mph.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 53. Northeast wind 15 to 17 mph, with gusts as high as 37 mph.

    Low: 53 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74. North northeast wind 15 to 21 mph, with gusts as high as 37 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 51. North wind 5 to 9 mph, with gusts as high as 23 mph.

    Low: 51 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 50. Breezy, with a north northeast wind 14 to 22 mph, with gusts as high as 44 mph.
Friday
Sunny, with a high near 69. North wind 15 to 21 mph, with gusts as high as 34 mph.
Friday Night
Clear, with a low around 53. Northeast wind 15 to 17 mph, with gusts as high as 37 mph.
Saturday
Sunny, with a high near 74. North northeast wind 15 to 21 mph, with gusts as high as 37 mph.
Saturday Night
Clear, with a low around 51. North wind 5 to 9 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 77.
Sunday Night
Clear, with a low around 50.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Clayton CA
 37.91°N 121.96°W (Elev. 1299 ft)
12:26 pm PST Mar 5, 2026
9pm 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