Severe Storms and Heavy Rain in Texas; Record Heat Along the East Coast

Scattered severe storms with large hail, isolated severe gusts, and localized flooding are expected across parts of west Texas. Isolated flash flooding is also possible in the central Gulf coast. An early season heat wave will continue to impact the eastern U.S. today, before isolated severe storms move across the central Appalachians into the Mid-Atlantic and far southern New England. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

65°F

18°C

Humidity 20%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 20 May 06:00 AM PDT
Extended Forecast for

19 Miles ENE Mount Hamilton CA

  • Today

    Today: Partly sunny, then becoming sunny during the afternoon, with a high near 83. Calm wind becoming east northeast 5 to 7 mph in the morning.

    High: 83 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Clear, with a low around 67. West northwest wind 5 to 10 mph becoming light west  after midnight.

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming north 5 to 9 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 68. North northwest wind 5 to 10 mph becoming west southwest in the evening.

    Low: 68 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Partly sunny, then becoming sunny during the afternoon, with a high near 83. Calm wind becoming east northeast 5 to 7 mph in the morning.
Tonight
Clear, with a low around 67. West northwest wind 5 to 10 mph becoming light west after midnight.
Thursday
Sunny, with a high near 86. Calm wind becoming north 5 to 9 mph in the afternoon.
Thursday Night
Clear, with a low around 68. North northwest wind 5 to 10 mph becoming west southwest in the evening.
Friday
Sunny, with a high near 86. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 82.
Saturday Night
Clear, with a low around 59.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 58.
Memorial Day
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 72.
Basemap Options
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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 May 20, 2026
7am PDT May 20, 2026-6pm PDT May 26, 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