Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

52°F

11°C

Humidity 80%
Wind Speed S 17 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 01 Jul 08:00 AM PDT
Extended Forecast for

19 Miles ENE Mount Hamilton CA

  • Today

    Today: Sunny, with a high near 78. Light and variable wind becoming east southeast 5 to 7 mph in the morning.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 58. North northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. North northwest wind around 5 mph becoming west southwest in the evening.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Light and variable wind becoming east 5 to 7 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Independence Day

    Independence Day: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 78. Light and variable wind becoming east southeast 5 to 7 mph in the morning.
Tonight
Clear, with a low around 58. North northwest wind 5 to 7 mph becoming southwest after midnight.
Thursday
Sunny, with a high near 79. Light and variable wind becoming east around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. North northwest wind around 5 mph becoming west southwest in the evening.
Friday
Sunny, with a high near 82. Light and variable wind becoming east 5 to 7 mph in the afternoon.
Friday Night
Clear, with a low around 65.
Independence Day
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles ENE Mount Hamilton CA
 37.42°N 121.32°W (Elev. 2201 ft)
2:00 am PDT Jul 1, 2026
8am PDT Jul 1, 2026-6pm PDT Jul 7, 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