Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

SAC NWR (NWRC1)

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

NA

45°F

7°C

Humidity 100%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 07 Dec 09:29 PM PST
Extended Forecast for

15 Miles NW Williams CA

  • Tonight

    Tonight: Widespread dense fog before 4am, then areas of dense fog after 5am.  Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Dense Fog

  • Monday

    Monday: Widespread dense fog, mainly before 8am.  Otherwise, sunny, with a high near 57. Calm wind becoming east around 5 mph.

    High: 57 °F

    Dense Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread dense fog before 4am, then areas of dense fog after 5am. Otherwise, partly cloudy, with a low around 44. Calm wind.
Monday
Widespread dense fog, mainly before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming east around 5 mph.
Monday Night
Partly cloudy, with a low around 45. Calm wind.
Tuesday
Mostly sunny, with a high near 61. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 48. Calm wind.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NW Williams CA
 39.3°N 122.35°W (Elev. 358 ft)
1:20 pm PST Dec 7, 2025
10pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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