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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

SAC NWR (NWRC1)

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

NA

60°F

16°C

Humidity 76%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 18 Aug 12:29 AM PDT
Extended Forecast for

Williams CA

  • Overnight

    Overnight: Mostly clear, with a low around 54. Southeast wind around 5 mph becoming calm.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 55. Southeast wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 58. South southeast wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 54. Southeast wind around 5 mph becoming calm.
Monday
Sunny, with a high near 84. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Clear, with a low around 55. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 58. South southeast wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny and hot, with a high near 96.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williams CA
 39.15°N 122.16°W (Elev. 95 ft)
Last Update:
12:21 am PDT Aug 18, 2025
Forecast Valid:
1am PDT Aug 18, 2025-6pm PDT Aug 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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