Severe Thunderstorms for mid-Mississippi and Ohio Valley; Record Warmth and Fire Weather Concerns

Severe thunderstorms are expected later this afternoon and evening across the mid-Mississippi and Ohio Valley's. Large hail, damaging winds and a few tornadoes are all possible. Meanwhile, record warmth across the southern tier of the country continues; This will enhance fire weather conditions for the Plains. The cold front will head south on Friday with cooler temperatures east of the Rockies. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

49°F

9°C

Humidity 43%
Wind Speed N 15 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 26 Mar 10:50 AM PDT
Extended Forecast for

3 Miles S Clayton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 68. North wind around 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. North wind 7 to 11 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 72. North northeast wind 7 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54. West northwest wind 7 to 9 mph becoming southwest after midnight.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 73. Southwest wind 6 to 8 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 68. North wind around 15 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 55. North wind 7 to 11 mph, with gusts as high as 25 mph.
Friday
Partly sunny, with a high near 72. North northeast wind 7 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Friday Night
Partly cloudy, with a low around 54. West northwest wind 7 to 9 mph becoming southwest after midnight.
Saturday
Sunny, with a high near 73. Southwest wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly cloudy, with a high near 64.
Monday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 56.
Tuesday
A chance of rain. Mostly cloudy, with a high near 57.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 53.
Wednesday
A chance of rain. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton CA
 37.9°N 121.92°W (Elev. 1900 ft)
1:26 pm PDT Mar 26, 2026
2pm PDT Mar 26, 2026-6pm PDT Apr 1, 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