Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

WY28 - South Pass (KSOU)

Lat: 42.47752°NLon: 108.8444°WElev: 8196.0ft.

NA

37°F

3°C

Humidity 99%
Wind Speed SW 16 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 25 Dec 06:56 AM MST
Extended Forecast for

19 Miles WNW South Pass City WY

Winter Weather Advisory December 25, 07:01am until December 25, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 25, 07:01am until December 25, 05:00pm

    NOW until 5:00pm Thu

    Winter Weather Advisory

  • Christmas Day

    High: 32 °F

    Heavy Snow
    and Windy

  • Tonight

    Tonight: Snow likely, mainly after 9pm.  Mostly cloudy, with a low around 23. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 23 °F

    Snow Likely
    and Breezy

  • Friday

    Friday: Snow. The snow could be heavy at times.  High near 26. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    High: 26 °F

    Heavy Snow
    and Breezy

  • Friday Night

    Friday Night: Snow.  Low around 13. Wind chill values as low as -5. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 13 °F

    Breezy. Snow
    then Snow
    Likely

  • Saturday

    Saturday: Snow likely, mainly after 11am.  Mostly cloudy, with a high near 18. Breezy, with a west wind 18 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 18 °F

    Snow Likely
    and Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow.  Partly cloudy, with a low around -4. Blustery, with a west northwest wind 9 to 15 mph, with gusts as high as 23 mph.

    Low: -4 °F

    Chance Snow
    and Blustery

  • Sunday

    Sunday: Sunny and cold, with a high near 10. West northwest wind 8 to 10 mph.

    High: 10 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 0.

    Low: 0 °F

    Mostly Clear

Detailed Forecast

Christmas Day
Snow. The snow could be heavy at times. Temperature falling to around 28 by 4pm. Windy, with a southwest wind 21 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow likely, mainly after 9pm. Mostly cloudy, with a low around 23. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow. The snow could be heavy at times. High near 26. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Friday Night
Snow. Low around 13. Wind chill values as low as -5. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 18. Breezy, with a west wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
A 40 percent chance of snow. Partly cloudy, with a low around -4. Blustery, with a west northwest wind 9 to 15 mph, with gusts as high as 23 mph.
Sunday
Sunny and cold, with a high near 10. West northwest wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 0.
Monday
Sunny, with a high near 21.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Partly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles WNW South Pass City WY
 42.62°N 109.13°W (Elev. 9567 ft)
6:48 am MST Dec 25, 2025
7am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
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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