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

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region through 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 West 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

73°F

23°C

Humidity 35%
Wind Speed WNW 13 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 15 Jul 12:40 AM PDT
Extended Forecast for

4 Miles ESE Walnut Creek CA

  • Overnight

    Overnight: Mostly clear, with a low around 56. South southwest wind around 10 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. West southwest wind around 10 mph, with gusts as high as 21 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 55. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 82. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 82 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 56. South southwest wind around 10 mph.
Tuesday
Sunny, with a high near 86. West southwest wind around 10 mph, with gusts as high as 21 mph.
Tuesday Night
Increasing clouds, with a low around 55. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 82. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 56. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Walnut Creek CA
 37.89°N 121.98°W (Elev. 509 ft)
3:02 pm PDT Jul 14, 2025
12am PDT Jul 15, 2025-6pm PDT Jul 21, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database