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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Hazardous Weather Conditions

Current conditions at

Emigrant Gap, Blue Canyon Nyack Airport (KBLU)

Lat: 39.27611°NLon: 120.70806°WElev: 5282.0ft.

light rain,fog

41°F

5°C

Humidity 100%
Wind Speed S 8 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 41°F (5°C)
Visibility 0.50 mi
Wind Chill36°F (2°C)
Last update 16 Nov 03:52 AM PST
Extended Forecast for

4 Miles SW Donner Summit CA

Winter Weather Advisory until November 17, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until November 17, 04:00pm

    NOW until 4:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: 30 °F

    Showers and
    Fog

  • Sunday

    Sunday: Rain and snow showers. Widespread fog, mainly between 9am and 10am. Areas of freezing fog between 7am and 9am. Steady temperature around 34. South southwest wind around 9 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Rain/Snow and
    Areas
    Freezing Fog

  • Sunday Night

    Sunday Night: Snow showers. The snow could be heavy at times. Low around 28. South wind 10 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 28 °F

    Snow Showers
    Likely then
    Heavy Snow

  • Monday

    Monday: Snow showers. The snow could be heavy at times. High near 34. South southwest wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 34 °F

    Heavy Snow

  • Monday Night

    Monday Night: Snow showers likely, mainly before 10pm. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of snow showers, mainly before 4pm. Partly sunny, with a high near 38. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow showers before 10pm. Partly cloudy, with a low around 23.

    Low: 23 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers. Widespread fog, mainly before 5am. Low around 30. South southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain and snow showers. Widespread fog, mainly between 9am and 10am. Areas of freezing fog between 7am and 9am. Steady temperature around 34. South southwest wind around 9 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Snow showers. The snow could be heavy at times. Low around 28. South wind 10 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Monday
Snow showers. The snow could be heavy at times. High near 34. South southwest wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday Night
Snow showers likely, mainly before 10pm. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday
A 40 percent chance of snow showers, mainly before 4pm. Partly sunny, with a high near 38. New snow accumulation of less than a half inch possible.
Tuesday Night
A 20 percent chance of snow showers before 10pm. Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Snow showers likely, mainly after 4am. Mostly cloudy, with a low around 25.
Thursday
Snow showers likely, mainly before 10am. Mostly cloudy, with a high near 35.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 23.
Friday
A slight chance of snow showers. Mostly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Donner Summit CA
 39.27°N 120.45°W (Elev. 6798 ft)
Last Update:
1:20 am PST Nov 16, 2025
Forecast Valid:
4am PST Nov 16, 2025-6pm PST Nov 22, 2025
 
Forecast Discussion
 
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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