Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

51°F

11°C

Humidity 33%
Wind Speed N 6 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 11 Mar 10:05 AM PDT
Extended Forecast for

4 Miles S Clayton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 72. North wind around 7 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Northwest wind 6 to 9 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. North northeast wind 5 to 8 mph becoming northwest in the afternoon.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 77. West southwest wind around 7 mph becoming northwest in the morning.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 72. North wind around 7 mph.
Tonight
Mostly clear, with a low around 55. Northwest wind 6 to 9 mph.
Thursday
Sunny, with a high near 78. North northeast wind 5 to 8 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 53. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Friday
Mostly sunny, with a high near 77. West southwest wind around 7 mph becoming northwest in the morning.
Friday Night
Mostly cloudy, with a low around 55.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
12:02 pm PDT Mar 11, 2026
12pm PDT Mar 11, 2026-6pm PDT Mar 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database