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

Wet and Cool in the East this Memorial Day Weekend; Well Above Normal Temperatures in the Northern Plains

A wet Memorial Day weekend is in store for the East, with widespread rainfall of 1 to more than 2 inches expected from the Gulf Coast to southern New England. Well above normal temperatures are forecast to build across the northern Plains. Another round of heavy to excessive rainfall is expected to impact the western Gulf Coast this weekend with Flood Watches in effect. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

83°F

28°C

Humidity 25%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index81°F (27°C)
Last update 23 May 04:00 PM PDT
Extended Forecast for

14 Miles NE Mount Hamilton CA

  • Tonight

    Tonight: Clear, with a low around 45. Southwest wind 3 to 7 mph.

    Low: 45 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 75. South southwest wind 5 to 8 mph becoming northeast in the afternoon.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. North wind 6 to 8 mph becoming west southwest in the evening.

    Low: 45 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 72. Southwest wind 5 to 8 mph becoming west northwest in the morning.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. West southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: A slight chance of rain after 11am. Sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 45. Southwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 75. South southwest wind 5 to 8 mph becoming northeast in the afternoon.
Sunday Night
Mostly clear, with a low around 45. North wind 6 to 8 mph becoming west southwest in the evening.
Memorial Day
Sunny, with a high near 72. Southwest wind 5 to 8 mph becoming west northwest in the morning.
Monday Night
Mostly clear, with a low around 42. West southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Clear, with a low around 42.
Wednesday
A slight chance of rain after 11am. Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 71.
Friday Night
Clear, with a low around 46.
Saturday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NE Mount Hamilton CA
 37.49°N 121.48°W (Elev. 2799 ft)
Last Update:
2:01 pm PDT May 23, 2026
Forecast Valid:
4pm PDT May 23, 2026-6pm PDT May 30, 2026
 
Forecast Discussion
 
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Additional Resources

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