National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

66°F

19°C

Humidity 52%
Wind Speed S 10 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 17 Jun 10:00 PM PDT
Extended Forecast for

15 Miles ESE Mount Hamilton CA

  • Tonight

    Tonight: Mostly clear, with a low around 56. West southwest wind around 8 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 53 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 73. Southwest wind 5 to 8 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. West southwest wind 6 to 10 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 56. West southwest wind around 8 mph.
Thursday
Sunny, with a high near 78. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 53. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Juneteenth
Sunny, with a high near 73. Southwest wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 52. West southwest wind 6 to 10 mph.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 83.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Mount Hamilton CA
 37.25°N 121.39°W (Elev. 2402 ft)
Last Update:
2:00 pm PDT Jun 17, 2026
Forecast Valid:
11pm PDT Jun 17, 2026-6pm PDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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