Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Current conditions at

Mount Diablo Summit Museum and Trailhead Rooftop (SJS02)

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

NA

82°F

28°C

Humidity 25%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Heat Index80°F (27°C)
Last update 13 Jul 09:20 AM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Sunny, with a high near 79. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 66. West southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 66 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 81. West wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 62. West southwest wind around 10 mph, with gusts as high as 22 mph.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. West southwest wind around 11 mph, with gusts as high as 22 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 79. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Tonight
Clear, with a low around 66. West southwest wind around 10 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 81. West wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
Clear, with a low around 62. West southwest wind around 10 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 74. West southwest wind around 11 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
8:16 am PDT Jul 13, 2025
9am PDT Jul 13, 2025-6pm PDT Jul 19, 2025
 
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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