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 14 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 25 Dec 05:26 AM MST
Extended Forecast for

23 Miles WSW Lander/Hunt Field WY

Winter Weather Advisory December 25, 05:39am until December 25, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 25, 05:39am until December 25, 05:00pm

    NOW until 5:00pm Thu

    Winter Weather Advisory

  • Overnight

    Low: 31 °F

    Heavy Snow
    and Windy

  • Christmas Day

    Christmas Day: Snow. The snow could be heavy at times.  Temperature falling to around 25 by 5pm. Very windy, with a southwest wind 35 to 40 mph decreasing to 29 to 34 mph in the afternoon. Winds could gust as high as 60 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 32 °F

    Heavy Snow
    and Very
    Windy

  • Thursday Night

    Thursday Night: Snow likely.  Mostly cloudy, with a low around 19. Windy, with a west southwest wind 23 to 26 mph, with gusts as high as 40 mph.  Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.

    Low: 19 °F

    Snow Likely
    and Windy

  • Friday

    Friday: Snow. The snow could be heavy at times.  High near 22. Windy, with a southwest wind 24 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 22 °F

    Heavy Snow
    and Windy

  • Friday Night

    Friday Night: Snow.  Low around 9. Windy, with a west wind 20 to 25 mph, with gusts as high as 38 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 9 °F

    Snow and
    Windy

  • Saturday

    Saturday: Snow likely.  Mostly cloudy, with a high near 14. Windy, with a west wind 21 to 28 mph, with gusts as high as 41 mph.  Chance of precipitation is 70%.

    High: 14 °F

    Snow Likely
    and Windy

  • Saturday Night

    Saturday Night: A 50 percent chance of snow.  Partly cloudy, with a low around -9. Breezy, with a west wind 8 to 16 mph, with gusts as high as 24 mph.

    Low: -9 °F

    Chance Snow
    and Breezy

  • Sunday

    Sunday: Sunny and cold, with a high near 7.

    High: 7 °F

    Cold

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Steady temperature around 31. Windy, with a southwest wind around 32 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.
Christmas Day
Snow. The snow could be heavy at times. Temperature falling to around 25 by 5pm. Very windy, with a southwest wind 35 to 40 mph decreasing to 29 to 34 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Thursday Night
Snow likely. Mostly cloudy, with a low around 19. Windy, with a west southwest wind 23 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.
Friday
Snow. The snow could be heavy at times. High near 22. Windy, with a southwest wind 24 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Friday Night
Snow. Low around 9. Windy, with a west wind 20 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow likely. Mostly cloudy, with a high near 14. Windy, with a west wind 21 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of snow. Partly cloudy, with a low around -9. Breezy, with a west wind 8 to 16 mph, with gusts as high as 24 mph.
Sunday
Sunny and cold, with a high near 7.
Sunday Night
Mostly clear, with a low around -3.
Monday
Sunny, with a high near 19.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
Partly sunny, with a high near 26.
Tuesday Night
Partly cloudy, with a low around 15.
Wednesday
Sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
23 Miles WSW Lander/Hunt Field WY
 42.72°N 109.17°W (Elev. 10591 ft)
5:01 am MST Dec 25, 2025
5am 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