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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

SAC NWR (NWRC1)

Lat: 39.41722°NLon: 122.1825°WElev: 120.0ft.

NA

87°F

31°C

Humidity 45%
Wind Speed SE 8 MPH
Barometer NA
Dewpoint 63°F (17°C)
Visibility NA
Heat Index88°F (31°C)
Last update 16 Aug 05:29 PM PDT
Extended Forecast for

Williams CA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly sunny, with a high near 87. South southeast wind around 8 mph.

    High: 87 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm. Mostly clear, with a low around 62. South wind around 6 mph becoming east southeast after midnight.

    Low: 62 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Southeast wind 3 to 8 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. Southeast wind 5 to 9 mph.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 87. South southeast wind around 8 mph.
Tonight
A 10 percent chance of showers before 7pm. Mostly clear, with a low around 62. South wind around 6 mph becoming east southeast after midnight.
Sunday
Sunny, with a high near 84. Southeast wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 54. Southeast wind 5 to 9 mph.
Monday
Sunny, with a high near 84. Light and variable wind.
Monday Night
Clear, with a low around 56.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 59.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny and hot, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williams CA
 39.15°N 122.13°W (Elev. 72 ft)
Last Update:
5:21 pm PDT Aug 16, 2025
Forecast Valid:
5pm PDT Aug 16, 2025-6pm PDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation