Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Current conditions at

Mount Diablo Summit Museum and Trailhead Rooftop (SJS02)

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

NA

70°F

21°C

Humidity 30%
Wind Speed SSW 14 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 15 Jul 05:35 PM PDT
Extended Forecast for

2 Miles S Clayton CA

  • Tonight

    Tonight: Mostly clear, with a low around 56. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. West southwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West southwest wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. West wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. West southwest wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 56. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 78. West southwest wind 9 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 56. West southwest wind 9 to 13 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 82. West wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 57. West southwest wind 9 to 13 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
1:26 pm PDT Jul 15, 2025
6pm PDT Jul 15, 2025-6pm PDT Jul 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database