Severe Weather and Flooding Threat in the Central U.S. and Mid-Atlantic; Dangerous Heat in the West and Southern Plains

Severe thunderstorms and heavy rain are expected across the central High Plains into parts of the central and southern Plains and in the the Mid-Atlantic today. Intense, dangerous heat will persist across the West, Southwest, and Southern Plains into the end of the week. Elevated to critical fire weather conditions expected in the Great Basin and Four Corners region. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

N/A

Humidity 28%
Wind Speed NW 9 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 17 May 05:05 PM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Sunny, with a high near 78. West southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. West southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. West southwest wind 8 to 11 mph, with gusts as high as 22 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 76. West southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. Breezy.

    Low: 61 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Friday

    Friday: Sunny, with a high near 69. Breezy.

    High: 69 °F

    Sunny and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Breezy.

    Low: 59 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 66. Breezy.

    High: 66 °F

    Mostly Sunny
    and Breezy
    then Sunny

Detailed Forecast

Today
Sunny, with a high near 78. West southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Tonight
Clear, with a low around 59. West southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 78. West southwest wind 8 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Clear, with a low around 60. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 76. West southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 61. Breezy.
Friday
Sunny, with a high near 69. Breezy.
Friday Night
Mostly clear, with a low around 59. Breezy.
Saturday
Sunny, with a high near 66. Breezy.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 77.
Sunday Night
Clear, with a low around 62.
Monday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.9°N 121.9°W (Elev. 1814 ft)
1:26 am PDT Jun 23, 2026
7am PDT Jun 23, 2026-6pm PDT Jun 29, 2026
 
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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