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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

76°F

24°C

Humidity 35%
Wind Speed SSW 7 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Heat Index78°F (26°C)
Last update 17 Jun 10:00 AM PDT
Extended Forecast for

13 Miles NE Mount Hamilton CA

  • Today

    Today: Sunny, with a high near 84. Light and variable wind becoming northeast around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. West southwest wind around 6 mph.

    Low: 52 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. Northwest wind 5 to 7 mph becoming west southwest in the evening.

    Low: 48 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 74. Southwest wind around 6 mph becoming east in the morning.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. Light and variable wind becoming northeast around 6 mph in the afternoon.
Tonight
Clear, with a low around 52. West southwest wind around 6 mph.
Thursday
Sunny, with a high near 80. Light and variable wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 48. Northwest wind 5 to 7 mph becoming west southwest in the evening.
Juneteenth
Sunny, with a high near 74. Southwest wind around 6 mph becoming east in the morning.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 74.
Saturday Night
Clear, with a low around 47.
Sunday
Sunny, with a high near 79.
Sunday Night
Clear, with a low around 50.
Monday
Sunny, with a high near 81.
Monday Night
Clear, with a low around 52.
Tuesday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NE Mount Hamilton CA
 37.49°N 121.48°W (Elev. 2799 ft)
Last Update:
2:00 am PDT Jun 17, 2026
Forecast Valid:
10am PDT Jun 17, 2026-6pm PDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation