Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

81°F

27°C

Humidity 37%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Heat Index80°F (27°C)
Last update 17 Aug 08:00 PM PDT
Extended Forecast for

14 Miles NE Mount Hamilton CA

  • Tonight

    Tonight: Partly cloudy, with a low around 61. West southwest wind 3 to 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 85. Light and variable wind becoming north northeast 5 to 8 mph in the morning.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64. Northwest wind around 6 mph becoming west southwest in the evening.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. West southwest wind around 6 mph.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

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

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. West southwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 85. Light and variable wind becoming north northeast 5 to 8 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 64. Northwest wind around 6 mph becoming west southwest in the evening.
Wednesday
Sunny, with a high near 88. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 64. West southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 81.
Saturday Night
Clear, with a low around 60.
Sunday
Sunny, with a high near 83.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NE Mount Hamilton CA
 37.49°N 121.48°W (Elev. 2799 ft)
2:00 pm PDT Aug 17, 2026
8pm PDT Aug 17, 2026-6pm PDT Aug 24, 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