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.

Clear

59°F

15°C

Humidity 58%
Wind Speed NE 3 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 15 Nov 02:35 PM PST
Extended Forecast for

4 Miles NE Donner Summit CA

Winter Weather Advisory November 15, 10:00pm until November 17, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: A 30 percent chance of showers after 5pm. Mostly cloudy, with a high near 44. East wind around 9 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance
    Showers

  • Tonight

    Tonight: Rain showers before 4am, then rain and snow showers. Widespread dense fog, mainly after midnight. Areas of freezing fog after 5am. Low around 29. East wind 6 to 10 mph becoming southwest in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 29 °F

    Rain/Snow and
    Areas
    Freezing Fog

  • Sunday

    Sunday: Snow showers, mainly after 4pm. The snow could be heavy at times. Widespread dense freezing fog, mainly between 9am and 10am. High near 33. Southwest wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 33 °F

    Heavy Snow
    and Dense
    Freezing Fog

  • Sunday Night

    Sunday Night: Snow showers. The snow could be heavy at times. Low around 26. South southwest wind 10 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 26 °F

    Heavy Snow

  • Monday

    Monday: Snow showers. The snow could be heavy at times. High near 30. South southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 30 °F

    Heavy Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 21. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Chance Snow
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of snow showers, mainly before 10am. Partly sunny, with a high near 32. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers before 10pm. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A slight chance of snow showers after 4pm. Mostly sunny, with a high near 35.

    High: 35 °F

    Slight Chance
    Snow Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers after 5pm. Mostly cloudy, with a high near 44. East wind around 9 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain showers before 4am, then rain and snow showers. Widespread dense fog, mainly after midnight. Areas of freezing fog after 5am. Low around 29. East wind 6 to 10 mph becoming southwest in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Sunday
Snow showers, mainly after 4pm. The snow could be heavy at times. Widespread dense freezing fog, mainly between 9am and 10am. High near 33. Southwest wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Sunday Night
Snow showers. The snow could be heavy at times. Low around 26. South southwest wind 10 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Monday
Snow showers. The snow could be heavy at times. High near 30. South southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Monday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 21. New snow accumulation of less than one inch possible.
Tuesday
A 30 percent chance of snow showers, mainly before 10am. Partly sunny, with a high near 32. New snow accumulation of less than a half inch possible.
Tuesday Night
A slight chance of snow showers before 10pm. Mostly cloudy, with a low around 20.
Wednesday
A slight chance of snow showers after 4pm. Mostly sunny, with a high near 35.
Wednesday Night
Snow showers likely, mainly after 4am. Mostly cloudy, with a low around 24.
Thursday
Snow showers likely. The snow could be heavy at times. Mostly cloudy, with a high near 29.
Thursday Night
A chance of snow showers. The snow could be heavy at times. Mostly cloudy, with a low around 21.
Friday
A slight chance of snow showers. Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Donner Summit CA
 39.36°N 120.35°W (Elev. 7510 ft)
Last Update:
1:21 pm PST Nov 15, 2025
Forecast Valid:
2pm PST Nov 15, 2025-6pm PST Nov 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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