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

Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

66°F

19°C

Humidity 60%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 16 Aug 07:00 AM PDT
Extended Forecast for

15 Miles NNE Mount Hamilton CA

  • Today

    Today: Sunny, with a high near 86. Light and variable wind becoming north northeast 5 to 8 mph in the morning.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. West wind 5 to 7 mph becoming south southwest after midnight.

    Low: 58 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 85. South southwest wind 5 to 8 mph becoming north in the morning.

    High: 85 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Southwest wind around 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Southwest wind 6 to 8 mph becoming northwest in the morning.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Light and variable wind becoming north northeast 5 to 8 mph in the morning.
Tonight
Increasing clouds, with a low around 58. West wind 5 to 7 mph becoming south southwest after midnight.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 85. South southwest wind 5 to 8 mph becoming north in the morning.
Monday Night
Partly cloudy, with a low around 56. Southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 86. Southwest wind 6 to 8 mph becoming northwest in the morning.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Mount Hamilton CA
 37.55°N 121.55°W (Elev. 2201 ft)
Last Update:
2:00 am PDT Aug 16, 2026
Forecast Valid:
7am PDT Aug 16, 2026-6pm PDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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Chance of Precipitation