Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

WY28 - South Pass (KSOU)

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

light snow

25°F

-4°C

Humidity 100%
Wind Speed SW 18 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility 0.23 mi
Wind Chill11°F (-12°C)
Last update 27 Dec 12:26 AM MST
Extended Forecast for

15 Miles NW South Pass City WY

Winter Weather Advisory December 27, 12:41am until December 27, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 27, 12:41am until December 27, 05:00pm

    NOW until 5:00pm Sat

    Winter Weather Advisory

  • Overnight

    Low: 11 °F

    Heavy Snow
    and Windy

  • Saturday

    Saturday: Snow showers likely, mainly after 3pm. The snow could be heavy at times.  Mostly cloudy, with a temperature rising to near 15 by 10am, then falling to around 2 during the remainder of the day. Wind chill values as low as -25. Windy, with a west southwest wind 24 to 30 mph, with gusts as high as 41 mph.  Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

    High: 15 °F

    Heavy Snow
    and Windy

  • Saturday Night

    Saturday Night: Snow showers likely.  Partly cloudy, with a low around -10. Wind chill values as low as -30. Windy, with a northwest wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 37 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: -10 °F

    Snow Showers
    Likely and
    Windy

  • Sunday

    Sunday: A 20 percent chance of snow showers before 11am.  Sunny and cold, with a high near 2. Wind chill values as low as -30. West wind 10 to 14 mph, with gusts as high as 20 mph.

    High: 2 °F

    Slight Chance
    Snow Showers
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -5. Breezy, with a west wind 11 to 15 mph.

    Low: -5 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Monday

    Monday: Sunny, with a high near 13. Breezy, with a west wind 10 to 15 mph.

    High: 13 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 7. Blustery, with a west northwest wind 15 to 18 mph.

    Low: 7 °F

    Mostly Clear
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 18. Blustery.

    High: 18 °F

    Mostly Sunny
    and Blustery
    then Mostly
    Sunny

Detailed Forecast

Overnight
Snow showers likely, mainly before 3am. The snow could be heavy at times. Cloudy, with a low around 11. Wind chill values as low as -5. Windy, with a west southwest wind 25 to 31 mph, with gusts as high as 44 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 9 to 13 inches possible.
Saturday
Snow showers likely, mainly after 3pm. The snow could be heavy at times. Mostly cloudy, with a temperature rising to near 15 by 10am, then falling to around 2 during the remainder of the day. Wind chill values as low as -25. Windy, with a west southwest wind 24 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow showers likely. Partly cloudy, with a low around -10. Wind chill values as low as -30. Windy, with a northwest wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday
A 20 percent chance of snow showers before 11am. Sunny and cold, with a high near 2. Wind chill values as low as -30. West wind 10 to 14 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around -5. Breezy, with a west wind 11 to 15 mph.
Monday
Sunny, with a high near 13. Breezy, with a west wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 7. Blustery, with a west northwest wind 15 to 18 mph.
Tuesday
Mostly sunny, with a high near 18. Blustery.
Tuesday Night
Mostly cloudy, with a low around 11. Blustery.
Wednesday
Mostly sunny, with a high near 21. Blustery.
Wednesday Night
Partly cloudy, with a low around 12. Breezy.
New Year's Day
Mostly cloudy, with a high near 20. Breezy.
Thursday Night
A slight chance of snow showers. Mostly cloudy, with a low around 14. Breezy.
Friday
A chance of snow showers. Mostly cloudy, with a high near 18. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NW South Pass City WY
 42.62°N 109.01°W (Elev. 11847 ft)
11:31 pm MST Dec 26, 2025
12am MST Dec 27, 2025-6pm MST Jan 2, 2026
 
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Additional Resources

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