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

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

San Luis Reservoir (SLRCA)

Lat: 37.06°NLon: 121.07°WElev: 266.0ft.

NA

77°F

25°C

Humidity 42%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Heat Index78°F (26°C)
Last update 04 Jul 08:57 AM PDT
Extended Forecast for

12 Miles E Hollister CA

Lake Wind Advisory July 4, 10:26am until July 4, 11:00pm
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory July 4, 10:26am until July 4, 11:00pm

    NOW until 11:00pm Sat

    Lake Wind Advisory

  • Independence Day

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 64. Southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 72. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 72 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. West southwest wind around 15 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72. West wind 10 to 15 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. West southwest wind around 15 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. West wind 10 to 15 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. West southwest wind around 15 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Independence Day
Sunny, with a high near 78. West wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Increasing clouds, with a low around 64. Southwest wind around 10 mph, with gusts as high as 15 mph.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 72. West wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 58. West southwest wind around 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 72. West wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 57. West southwest wind around 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 74. West wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 58. West southwest wind around 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 78. West wind 10 to 15 mph.
Wednesday Night
Clear, with a low around 62. West southwest wind 10 to 15 mph.
Thursday
Sunny, with a high near 81. West wind around 10 mph, with gusts as high as 15 mph.
Thursday Night
Mostly clear, with a low around 64. West southwest wind 10 to 15 mph.
Friday
Sunny, with a high near 79. West wind 10 to 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles E Hollister CA
 36.9°N 121.19°W (Elev. 2854 ft)
Last Update:
9:56 am PDT Jul 4, 2026
Forecast Valid:
10am PDT Jul 4, 2026-6pm PDT Jul 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation