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

37°F

3°C

Humidity 100%
Wind Speed S 10 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 16 Feb 03:50 AM PST
Extended Forecast for

2 Miles SSW Clayton CA

  • Overnight

    Overnight: Rain. Low around 46. South wind around 7 mph becoming east. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain

  • Washington's Birthday

    Washington's Birthday: Rain. High near 49. North northeast wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 49 °F

    Rain

  • Monday Night

    Monday Night: A chance of rain before 9pm, then rain likely after 2am. Mostly cloudy, with a low around 42. West southwest wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain, mainly before 10am, then showers and possibly a thunderstorm after 10am. High near 47. Breezy, with a south southwest wind 22 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 47 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain, mainly before 10pm. Low around 38. West southwest wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 49. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 41. Chance of precipitation is 80%.

    Low: 41 °F

    Rain

  • Thursday

    Thursday: Rain. Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Rain. Low around 46. South wind around 7 mph becoming east. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Washington's Birthday
Rain. High near 49. North northeast wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday Night
A chance of rain before 9pm, then rain likely after 2am. Mostly cloudy, with a low around 42. West southwest wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain, mainly before 10am, then showers and possibly a thunderstorm after 10am. High near 47. Breezy, with a south southwest wind 22 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Rain, mainly before 10pm. Low around 38. West southwest wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 49. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 41. Chance of precipitation is 80%.
Thursday
Rain. Mostly cloudy, with a high near 49.
Thursday Night
A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 37.
Friday
A chance of rain and snow before 10am, then a chance of rain. Partly sunny, with a high near 51.
Friday Night
A chance of rain. Mostly cloudy, with a low around 39.
Saturday
A chance of rain. Partly sunny, with a high near 54.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
Rain likely. Mostly cloudy, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Clayton CA
 37.91°N 121.96°W (Elev. 1299 ft)
Last Update:
1:55 am PST Feb 16, 2026
Forecast Valid:
4am PST Feb 16, 2026-6pm PST Feb 22, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation