Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Current conditions at

WY28 - South Pass (KSOU)

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

NA

34°F

1°C

Humidity 72%
Wind Speed W 27 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility 1.24 mi
Wind Chill21°F (-6°C)
Last update 11 Dec 05:26 AM MST
Extended Forecast for

15 Miles NW South Pass City WY

  • Today

    Today: Mostly sunny, with a temperature rising to near 35 by 10am, then falling to around 20 during the remainder of the day. Very windy, with a west wind 36 to 41 mph decreasing to 28 to 33 mph in the afternoon. Winds could gust as high as 60 mph.

    High: 35 °F

    Mostly Sunny
    and Very
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 20. Windy, with a west wind 26 to 29 mph, with gusts as high as 44 mph.

    Low: 20 °F

    Partly Cloudy
    and Windy

  • Friday

    Friday: Partly sunny, with a high near 23. Windy, with a west wind 23 to 28 mph, with gusts as high as 41 mph.

    High: 23 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17. Wind chill values as low as -5. Very windy, with a west wind 31 to 37 mph, with gusts as high as 55 mph.

    Low: 17 °F

    Mostly Cloudy
    and Very
    Windy

  • Saturday

    Saturday: Mostly sunny, with a high near 25. Windy, with a west wind 25 to 30 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 25 °F

    Mostly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. Breezy, with a west wind 18 to 22 mph, with gusts as high as 33 mph.

    Low: 20 °F

    Mostly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 27. Breezy, with a west wind 14 to 20 mph, with gusts as high as 30 mph.

    High: 27 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18. Blustery.

    Low: 18 °F

    Partly Cloudy
    and Blustery

  • Monday

    Monday: Mostly sunny, with a high near 26. Blustery.

    High: 26 °F

    Mostly Sunny
    and Blustery

Detailed Forecast

Today
Mostly sunny, with a temperature rising to near 35 by 10am, then falling to around 20 during the remainder of the day. Very windy, with a west wind 36 to 41 mph decreasing to 28 to 33 mph in the afternoon. Winds could gust as high as 60 mph.
Tonight
Partly cloudy, with a low around 20. Windy, with a west wind 26 to 29 mph, with gusts as high as 44 mph.
Friday
Partly sunny, with a high near 23. Windy, with a west wind 23 to 28 mph, with gusts as high as 41 mph.
Friday Night
Mostly cloudy, with a low around 17. Wind chill values as low as -5. Very windy, with a west wind 31 to 37 mph, with gusts as high as 55 mph.
Saturday
Mostly sunny, with a high near 25. Windy, with a west wind 25 to 30 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 45 mph.
Saturday Night
Mostly cloudy, with a low around 20. Breezy, with a west wind 18 to 22 mph, with gusts as high as 33 mph.
Sunday
Mostly sunny, with a high near 27. Breezy, with a west wind 14 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 18. Blustery.
Monday
Mostly sunny, with a high near 26. Blustery.
Monday Night
Mostly cloudy, with a low around 20. Windy.
Tuesday
A slight chance of snow. Partly sunny, with a high near 22. Windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 16. Very windy.
Wednesday
A chance of snow. Partly sunny, with a high near 17. Very windy.
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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)
4:47 am MST Dec 11, 2025
5am MST Dec 11, 2025-6pm MST Dec 17, 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