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

2 Miles S Clayton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 78. West wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Southwest wind 7 to 14 mph, with gusts as high as 28 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. East southeast wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 23 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. North wind 6 to 9 mph becoming west in the evening. Winds could gust as high as 20 mph.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79. North wind 5 to 7 mph.

    High: 79 °F

    Partly Sunny

  • Friday Night

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

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 78. West wind 13 to 15 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 49. Southwest wind 7 to 14 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 76. East southeast wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 56. North wind 6 to 9 mph becoming west in the evening. Winds could gust as high as 20 mph.
Friday
Partly sunny, with a high near 79. North wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly cloudy, with a high near 73.
Monday Night
A chance of rain. Mostly cloudy, with a low around 55.
Tuesday
Rain likely. Mostly cloudy, with a high near 66.
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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:
2:41 pm PDT Mar 25, 2026
Forecast Valid:
2pm PDT Mar 25, 2026-6pm PDT Mar 31, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation