Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

WY28 - South Pass (KSOU)

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

NA

28°F

-2°C

Humidity 75%
Wind Speed WNW 28 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility 1.24 mi
Wind Chill13°F (-11°C)
Last update 08 Dec 10:56 AM MST
Extended Forecast for

10 Miles NNW South Pass City WY

Winter Storm Watch December 9, 05:00am until December 10, 05:00pm
Click here for hazard details and duration
Winter Storm Watch
  • Today

    Today: Patchy blowing snow. Partly sunny, with a temperature falling to around 22 by 5pm. Windy, with a west wind 23 to 26 mph, with gusts as high as 44 mph.

    High: 28 °F

    Patchy
    Blowing Snow
    and Windy

  • Tonight

    Tonight: Isolated snow showers before 2am, then isolated snow showers after 4am.  Patchy blowing snow. Mostly cloudy, with a temperature rising to around 26 by 5am. Windy, with a west wind 29 to 34 mph, with gusts as high as 60 mph.  Chance of precipitation is 20%.

    Low: 22 °F

    Isolated Snow
    Showers and
    Patchy
    Blowing Snow

  • Tuesday

    Tuesday: Scattered snow showers, mainly between noon and 4pm.  Patchy blowing snow before 4pm. Partly sunny, with a high near 34. Very windy, with a west wind 31 to 41 mph decreasing to 14 to 24 mph. Winds could gust as high as 65 mph.  Chance of precipitation is 30%.

    High: 34 °F

    Scattered
    Snow Showers
    and Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 24. Windy, with a west wind 22 to 30 mph, with gusts as high as 45 mph.  New snow accumulation of less than one inch possible.

    Low: 24 °F

    Chance Snow
    and Windy

  • Wednesday

    Wednesday: A 50 percent chance of snow.  Partly sunny, with a high near 36. Windy, with a west wind around 34 mph, with gusts as high as 50 mph.  New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    and Windy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before 11pm.  Mostly cloudy, with a low around 29. Windy, with a west wind 31 to 33 mph, with gusts as high as 50 mph.

    Low: 29 °F

    Windy. Slight
    Chance Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow.  Mostly sunny, with a high near 37. Windy, with a west wind 23 to 28 mph, with gusts as high as 41 mph.

    High: 37 °F

    Slight Chance
    Snow and
    Windy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24. Breezy.

    Low: 24 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 35. Breezy.

    High: 35 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Today
Patchy blowing snow. Partly sunny, with a temperature falling to around 22 by 5pm. Windy, with a west wind 23 to 26 mph, with gusts as high as 44 mph.
Tonight
Isolated snow showers before 2am, then isolated snow showers after 4am. Patchy blowing snow. Mostly cloudy, with a temperature rising to around 26 by 5am. Windy, with a west wind 29 to 34 mph, with gusts as high as 60 mph. Chance of precipitation is 20%.
Tuesday
Scattered snow showers, mainly between noon and 4pm. Patchy blowing snow before 4pm. Partly sunny, with a high near 34. Very windy, with a west wind 31 to 41 mph decreasing to 14 to 24 mph. Winds could gust as high as 65 mph. Chance of precipitation is 30%.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24. Windy, with a west wind 22 to 30 mph, with gusts as high as 45 mph. New snow accumulation of less than one inch possible.
Wednesday
A 50 percent chance of snow. Partly sunny, with a high near 36. Windy, with a west wind around 34 mph, with gusts as high as 50 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 29. Windy, with a west wind 31 to 33 mph, with gusts as high as 50 mph.
Thursday
A 20 percent chance of snow. Mostly sunny, with a high near 37. Windy, with a west wind 23 to 28 mph, with gusts as high as 41 mph.
Thursday Night
Mostly cloudy, with a low around 24. Breezy.
Friday
Partly sunny, with a high near 35. Breezy.
Friday Night
Mostly cloudy, with a low around 24. Breezy.
Saturday
Mostly sunny, with a high near 36. Breezy.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Sunny, with a high near 35. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW South Pass City WY
 42.59°N 108.89°W (Elev. 9567 ft)
11:01 am MST Dec 8, 2025
11am MST Dec 8, 2025-6pm MST Dec 14, 2025
 
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Additional Resources

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