Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

83°F

28°C

Humidity 29%
Wind Speed E 7 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index81°F (27°C)
Last update 21 Jun 02:00 PM PDT
Extended Forecast for

15 Miles NNE Mount Hamilton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. West wind around 9 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 51. Southwest wind 5 to 9 mph.

    Low: 51 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 54. West wind 5 to 8 mph becoming light and variable  after midnight.

    Low: 54 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming north northwest 5 to 8 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. West wind around 9 mph.
Tonight
Clear, with a low around 51. Southwest wind 5 to 9 mph.
Monday
Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 8 mph in the afternoon.
Monday Night
Clear, with a low around 54. West wind 5 to 8 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 87. Calm wind becoming north northwest 5 to 8 mph in the afternoon.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 56.
Thursday
Sunny, with a high near 85.
Thursday Night
Clear, with a low around 51.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Mount Hamilton CA
 37.55°N 121.55°W (Elev. 2201 ft)
2:00 pm PDT Jun 21, 2026
2pm PDT Jun 21, 2026-6pm PDT Jun 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database