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

Heavy Rainfall for the Mid-Atlantic; Heat and Wildfire Concerns for the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region today into tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the interior Northwest with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Current conditions at

Mount Diablo Summit Museum and Trailhead Rooftop (SJS02)

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

NA

83°F

28°C

Humidity 24%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Heat Index81°F (27°C)
Last update 14 Jul 03:05 PM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Tonight

    Tonight: Clear, with a low around 66. West southwest wind around 10 mph, with gusts as high as 22 mph.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Southwest wind around 11 mph, with gusts as high as 24 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. West southwest wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Thursday Night

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

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Friday Night

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

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 66. West southwest wind around 10 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 74. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 61. Southwest wind around 11 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 70. Southwest wind 7 to 11 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 63. West southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
3:02 pm PDT Jul 14, 2025
Forecast Valid:
3pm PDT Jul 14, 2025-6pm PDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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