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

Extremely Critical Fire Weather in the Central Plains; Active Pattern in the West

Gusty to high winds and low relative humidity will bring critical to extremely critical fire weather conditions to the central and southern Plains today into Wednesday. Use caution with any potential ignition sources. 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

34°F

1°C

Humidity 100%
Wind Speed SSW 14 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 17 Feb 09:20 AM PST
Extended Forecast for

2 Miles S Clayton CA

  • Today

    Today: Rain and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 50. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 50 °F

    Heavy Rain
    and Breezy

  • Tonight

    Tonight: Showers likely before midnight, then a chance of rain after 4am. Mostly cloudy, with a low around 37. West wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Showers
    Likely then
    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am. Partly sunny, with a high near 51. West southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 41. South southeast wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain

  • Thursday

    Thursday: Rain. High near 49. South wind 18 to 20 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain. Mostly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain. Partly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain. Partly sunny, with a high near 56.

    High: 56 °F

    Chance Rain

Detailed Forecast

Today
Rain and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 50. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers likely before midnight, then a chance of rain after 4am. Mostly cloudy, with a low around 37. West wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely, mainly after 10am. Partly sunny, with a high near 51. West southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 41. South southeast wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. High near 49. South wind 18 to 20 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of rain. Partly cloudy, with a low around 36.
Friday
A 30 percent chance of rain. Mostly sunny, with a high near 52.
Friday Night
A chance of rain. Partly cloudy, with a low around 40.
Saturday
A chance of rain. Partly sunny, with a high near 56.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 47.
Sunday
Rain likely. Mostly cloudy, with a high near 61.
Sunday Night
Rain. Cloudy, with a low around 52.
Monday
Rain. Cloudy, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
Last Update:
9:15 am PST Feb 17, 2026
Forecast Valid:
9am PST Feb 17, 2026-6pm PST Feb 23, 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