Severe Weather and Heavy Rainfall from the High Plains to the Ohio Valley; Heat Continuing in the Central Plains and Southeast

A stationary front will be the focus for daily showers and thunderstorms capable of widely scattered flash flooding and severe weather from the High Plains to the Ohio Valley. Monsoonal thunderstorms could cause local flash flooding across the Southwest and the Great Basin. Dangerous heat continues across the Central Plains and Southeast. Many areas will see their hottest temperatures of the year. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

89°F

32°C

Humidity 21%
Wind Speed S 7 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index85°F (29°C)
Last update 12 Aug 01:00 PM PDT
Extended Forecast for

18 Miles ENE Mount Hamilton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. South southwest wind around 7 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Southwest wind around 5 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 75. Light and variable wind becoming east southeast 5 to 8 mph in the morning.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. South southwest wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73. Light and variable wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Saturday Night

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

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 82. South southwest wind around 7 mph.
Tonight
Increasing clouds, with a low around 66. Southwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 75. Light and variable wind becoming east southeast 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 60. South southwest wind around 6 mph.
Friday
Sunny, with a high near 73. Light and variable wind becoming south southeast 5 to 7 mph in the afternoon.
Friday Night
Clear, with a low around 61.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles ENE Mount Hamilton CA
 37.46°N 121.36°W (Elev. 2451 ft)
2:01 pm PDT Aug 12, 2026
2pm PDT Aug 12, 2026-6pm PDT Aug 18, 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