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

Record Breaking Temperatures and Critical Fire Weather

More than 200 record or near record maximum temperatures are forecast across the southern half of the U.S. through the end of this week before additional record temperatures center back over the Southwest U.S. into the Rockies this weekend. Widespread record breaking warmth, low humidity, and gusty winds will produce critical fire weather today in the central Rockies to Plains. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

60°F

16°C

Humidity 13%
Wind Speed WNW 12 MPH
Barometer NA
Dewpoint 9°F (-13°C)
Visibility NA
Last update 25 Mar 05:30 AM PDT
Extended Forecast for

3 Miles S Clayton CA

  • Today

    Today: Sunny, with a high near 70. West wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. West wind 7 to 16 mph, with gusts as high as 30 mph.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 69. North wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. North wind 7 to 11 mph becoming west in the evening. Winds could gust as high as 22 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 72. North northeast wind 6 to 8 mph.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. West wind 11 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 48. West wind 7 to 16 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 69. North wind 9 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 55. North wind 7 to 11 mph becoming west in the evening. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 72. North northeast wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 55.
Monday
A slight chance of rain. Partly sunny, with a high near 66.
Monday Night
A chance of rain. Mostly cloudy, with a low around 54.
Tuesday
A chance of rain. Partly sunny, with a high near 60.
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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:
9:02 am PDT Mar 25, 2026
Forecast Valid:
10am PDT Mar 25, 2026-6pm PDT Mar 31, 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