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

39°F

4°C

Humidity 83%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 24 Dec 10:42 PM MST
Extended Forecast for

2 Miles WNW South Pass City WY

Winter Weather Advisory December 24, 11:00pm until December 25, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Showers, mainly after 2am. Steady temperature around 38. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Breezy.
    Isolated
    Showers then
    Showers

  • Christmas Day

    Christmas Day: Rain and snow showers, becoming all snow after 11am. Snow level 9000 feet lowering to 8200 feet in the afternoon . High near 38. Windy, with a west southwest wind 23 to 31 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Windy.
    Rain/Snow
    then
    Scattered
    Snow Showers

  • Thursday Night

    Thursday Night: Scattered snow showers. Mostly cloudy, with a low around 30. Breezy, with a southwest wind 21 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New snow accumulation of around an inch possible.

    Low: 30 °F

    Scattered
    Snow Showers
    and Breezy

  • Friday

    Friday: Snow showers. High near 32. Windy, with a southwest wind 23 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 32 °F

    Snow Showers
    and Windy

  • Friday Night

    Friday Night: Snow showers, mainly before 11pm. Low around 21. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 21 °F

    Breezy. Snow
    Showers then
    Chance Snow
    Showers

  • Saturday

    Saturday: A 30 percent chance of snow showers. Partly sunny, with a high near 25. Windy, with a west southwest wind 23 to 26 mph, with gusts as high as 43 mph.

    High: 25 °F

    Chance Snow
    Showers and
    Windy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 3. Breezy, with a northwest wind 11 to 17 mph, with gusts as high as 30 mph.

    Low: 3 °F

    Chance Snow
    Showers and
    Breezy

  • Sunday

    Sunday: Sunny, with a high near 19.

    High: 19 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers, mainly after 2am. Steady temperature around 38. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
Rain and snow showers, becoming all snow after 11am. Snow level 9000 feet lowering to 8200 feet in the afternoon . High near 38. Windy, with a west southwest wind 23 to 31 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Scattered snow showers. Mostly cloudy, with a low around 30. Breezy, with a southwest wind 21 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New snow accumulation of around an inch possible.
Friday
Snow showers. High near 32. Windy, with a southwest wind 23 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow showers, mainly before 11pm. Low around 21. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Saturday
A 30 percent chance of snow showers. Partly sunny, with a high near 25. Windy, with a west southwest wind 23 to 26 mph, with gusts as high as 43 mph.
Saturday Night
A 30 percent chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 3. Breezy, with a northwest wind 11 to 17 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 19.
Sunday Night
Mostly clear, with a low around 8.
Monday
Sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Sunny, with a high near 36. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW South Pass City WY
 42.48°N 108.84°W (Elev. 8199 ft)
Last Update:
9:17 pm MST Dec 24, 2025
Forecast Valid:
10pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
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