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

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 >

Hazardous Weather Conditions

Current conditions at

WY28 - South Pass (KSOU)

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

NA

37°F

3°C

Humidity 84%
Wind Speed W 19 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 25 Dec 01:42 PM MST
Extended Forecast for

7 Miles NNE South Pass City WY

  • Christmas Day

    Christmas Day: Snow showers likely, mainly before 2pm. Some thunder is also possible. Mostly sunny, with a high near 39. Windy, with a west southwest wind 22 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Showers
    Likely and
    Windy

  • Tonight

    Tonight: Scattered snow showers before 1am, then scattered snow showers after 2am. Patchy blowing snow after 5am. Partly cloudy, with a low around 28. Windy, with a west southwest wind 20 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Scattered
    Snow Showers
    and Patchy
    Blowing Snow

  • Friday

    Friday: Snow showers. Patchy blowing snow after 7am. High near 34. Windy, with a south southwest wind 20 to 25 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 34 °F

    Snow Showers
    and Patchy
    Blowing Snow

  • Friday Night

    Friday Night: Snow showers. Patchy blowing snow before 11pm. Low around 20. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 20 °F

    Snow Showers
    and Patchy
    Blowing Snow

  • Saturday

    Saturday: A 40 percent chance of snow showers. Mostly sunny, with a high near 26. Windy, with a west southwest wind 17 to 25 mph, with gusts as high as 41 mph. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow
    Showers and
    Windy

  • Saturday Night

    Saturday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 2. West wind 6 to 13 mph becoming north after midnight. Winds could gust as high as 23 mph.

    Low: 2 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Sunny, with a high near 17. West wind around 6 mph.

    High: 17 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

Detailed Forecast

Christmas Day
Snow showers likely, mainly before 2pm. Some thunder is also possible. Mostly sunny, with a high near 39. Windy, with a west southwest wind 22 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Scattered snow showers before 1am, then scattered snow showers after 2am. Patchy blowing snow after 5am. Partly cloudy, with a low around 28. Windy, with a west southwest wind 20 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Friday
Snow showers. Patchy blowing snow after 7am. High near 34. Windy, with a south southwest wind 20 to 25 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow showers. Patchy blowing snow before 11pm. Low around 20. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday
A 40 percent chance of snow showers. Mostly sunny, with a high near 26. Windy, with a west southwest wind 17 to 25 mph, with gusts as high as 41 mph. New snow accumulation of less than a half inch possible.
Saturday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 2. West wind 6 to 13 mph becoming north after midnight. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 17. West wind around 6 mph.
Sunday Night
Mostly clear, with a low around 6.
Monday
Sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE South Pass City WY
 42.56°N 108.73°W (Elev. 8389 ft)
Last Update:
1:18 pm MST Dec 25, 2025
Forecast Valid:
1pm MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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