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Winter Weather in the Eastern U.S.; Fire Weather in the Southern High Plains

A wintry mix may impact travel across portions of the Ohio Valley, central Appalachians, Mid-Atlantic, and Northeast U.S. today through Tuesday. Gusty winds and low relative humidity will bring elevated to critical fire weather to northeastern New Mexico and southeastern Colorado today and Tuesday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

42°F

6°C

Humidity 99%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 02 Mar 06:25 AM PST
Extended Forecast for

4 Miles SSE Clayton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 52. West northwest wind 6 to 8 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. West northwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 57. West southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 44. Southwest wind around 14 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56. Breezy, with a west wind 16 to 22 mph, with gusts as high as 36 mph.

    High: 56 °F

    Partly Sunny
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Clear, with a low around 41. Breezy.

    Low: 41 °F

    Clear and
    Breezy then
    Clear

  • Thursday

    Thursday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 61. Breezy.

    High: 61 °F

    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 52. West northwest wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 45. West northwest wind around 10 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 57. West southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Increasing clouds, with a low around 44. Southwest wind around 14 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 56. Breezy, with a west wind 16 to 22 mph, with gusts as high as 36 mph.
Wednesday Night
Clear, with a low around 41. Breezy.
Thursday
Sunny, with a high near 57.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 61. Breezy.
Friday Night
Clear, with a low around 48.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
12:26 pm PST Mar 2, 2026
Forecast Valid:
1pm PST Mar 2, 2026-6pm PDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

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