National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain, and heavy mountain snow. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

35°F

2°C

Humidity 99%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill31°F (-1°C)
Last update 16 Feb 10:25 AM PST
Extended Forecast for

3 Miles S Clayton CA

  • Washington's Birthday

    Washington's Birthday: Rain. High near 46. North wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 46 °F

    Rain

  • Tonight

    Tonight: A chance of rain and snow before 4am, then a chance of rain between 4am and 5am, then a chance of rain and snow after 5am. Mostly cloudy, with a low around 40. Breezy, with a west wind 18 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 40 °F

    Chance Rain
    and Breezy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain, possibly mixed with snow showers, becoming all rain after 8am. Some thunder is also possible. High near 44. Breezy, with a southwest wind 23 to 26 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 44 °F

    Breezy.
    Rain/Snow
    then Showers

  • Tuesday Night

    Tuesday Night: Rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of snow after 4am. Low around 37. West wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of snow before 7am, then a chance of rain and snow between 7am and 10am, then rain likely after 10am. Mostly cloudy, with a high near 47. Southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 41. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain

  • Thursday

    Thursday: Rain. High near 46. Chance of precipitation is 80%.

    High: 46 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 49.

    High: 49 °F

    Chance
    Rain/Snow

Detailed Forecast

Washington's Birthday
Rain. High near 46. North wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Tonight
A chance of rain and snow before 4am, then a chance of rain between 4am and 5am, then a chance of rain and snow after 5am. Mostly cloudy, with a low around 40. Breezy, with a west wind 18 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday
Rain, possibly mixed with snow showers, becoming all rain after 8am. Some thunder is also possible. High near 44. Breezy, with a southwest wind 23 to 26 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
Rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of snow after 4am. Low around 37. West wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
A chance of snow before 7am, then a chance of rain and snow between 7am and 10am, then rain likely after 10am. Mostly cloudy, with a high near 47. Southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Rain. Low around 41. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 46. Chance of precipitation is 80%.
Thursday Night
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 37.
Friday
A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 49.
Friday Night
A chance of rain. Mostly cloudy, with a low around 39.
Saturday
A chance of rain. Partly sunny, with a high near 52.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 44.
Sunday
Rain likely. Mostly cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton CA
 37.9°N 121.92°W (Elev. 1900 ft)
Last Update:
1:55 am PST Feb 16, 2026
Forecast Valid:
10am PST Feb 16, 2026-6pm PST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation