Wintry Precipitation for the Northeast; Increasing Severe Weather Threat from the Plains to the Midwest

Wintry mixed precipitation will spread across the Northeast today, with light snow and ice accumulations forecast through southern New England. Meanwhile, the threat of severe weather will be increasing from the southern Plains to the Midwest, with rounds of showers and thunderstorms, some severe, expected each day through Friday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

48°F

9°C

Humidity 68%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 03 Mar 07:40 AM PST
Extended Forecast for

3 Miles S Clayton CA

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 57. West wind 17 to 21 mph, with gusts as high as 34 mph.

    High: 57 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. West northwest wind 14 to 18 mph, with gusts as high as 33 mph.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 59. North northwest wind 14 to 20 mph, with gusts as high as 36 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46. Northwest wind 16 to 18 mph, with gusts as high as 36 mph.

    Low: 46 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 62. Breezy.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 46. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 57. West wind 17 to 21 mph, with gusts as high as 34 mph.
Wednesday Night
Clear, with a low around 39. West northwest wind 14 to 18 mph, with gusts as high as 33 mph.
Thursday
Sunny, with a high near 59. North northwest wind 14 to 20 mph, with gusts as high as 36 mph.
Thursday Night
Clear, with a low around 46. Northwest wind 16 to 18 mph, with gusts as high as 36 mph.
Friday
Sunny, with a high near 62. Breezy.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 67.
Saturday Night
Clear, with a low around 48.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton CA
 37.9°N 121.92°W (Elev. 1900 ft)
12:26 pm PST Mar 3, 2026
3pm PST Mar 3, 2026-6pm PDT Mar 10, 2026
 
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Additional Resources

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