Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

WY28 - South Pass (KSOU)

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

NA

45°F

7°C

Humidity 45%
Wind Speed WNW 20 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 13 Mar 02:56 PM MDT
Extended Forecast for

South Pass City WY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 46. Windy, with a west wind around 31 mph, with gusts as high as 50 mph.

    High: 46 °F

    Mostly Sunny
    and Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Very windy, with a south wind 17 to 27 mph becoming west 33 to 43 mph. Winds could gust as high as 65 mph.

    Low: 34 °F

    Partly Cloudy
    and Very
    Windy

  • Saturday

    Saturday: A 50 percent chance of snow showers, mainly after noon.  Mostly sunny, with a high near 42. Very windy, with a west wind 36 to 41 mph decreasing to 29 to 34 mph in the afternoon. Winds could gust as high as 60 mph.  New snow accumulation of less than one inch possible.

    High: 42 °F

    Chance Snow
    Showers and
    Very Windy

  • Saturday Night

    Saturday Night: Snow showers.  Patchy blowing snow between midnight and 4am. Low around 10. Wind chill values as low as -5. Windy, with a west southwest wind 24 to 34 mph becoming north 13 to 23 mph in the evening. Winds could gust as high as 55 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 10 °F

    Snow Showers
    and Patchy
    Blowing Snow

  • Sunday

    Sunday: A 30 percent chance of snow showers.  Partly sunny, with a high near 23. Blustery, with a north wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.  New snow accumulation of less than a half inch possible.

    High: 23 °F

    Chance Snow
    Showers and
    Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 14. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 14 °F

    Partly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 43. Windy, with a west wind 16 to 25 mph, with gusts as high as 39 mph.

    High: 43 °F

    Partly Sunny
    and Windy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. Windy.

    High: 53 °F

    Partly Sunny
    and Windy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 46. Windy, with a west wind around 31 mph, with gusts as high as 50 mph.
Tonight
Partly cloudy, with a low around 34. Very windy, with a south wind 17 to 27 mph becoming west 33 to 43 mph. Winds could gust as high as 65 mph.
Saturday
A 50 percent chance of snow showers, mainly after noon. Mostly sunny, with a high near 42. Very windy, with a west wind 36 to 41 mph decreasing to 29 to 34 mph in the afternoon. Winds could gust as high as 60 mph. New snow accumulation of less than one inch possible.
Saturday Night
Snow showers. Patchy blowing snow between midnight and 4am. Low around 10. Wind chill values as low as -5. Windy, with a west southwest wind 24 to 34 mph becoming north 13 to 23 mph in the evening. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday
A 30 percent chance of snow showers. Partly sunny, with a high near 23. Blustery, with a north wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 14. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 43. Windy, with a west wind 16 to 25 mph, with gusts as high as 39 mph.
Monday Night
Mostly cloudy, with a low around 33. Breezy.
Tuesday
Partly sunny, with a high near 53. Windy.
Tuesday Night
Mostly cloudy, with a low around 36. Breezy.
Wednesday
Mostly sunny, with a high near 58. Breezy.
Wednesday Night
Partly cloudy, with a low around 39. Breezy.
Thursday
Mostly sunny, with a high near 61. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
South Pass City WY
 42.46°N 108.81°W (Elev. 7953 ft)
2:48 pm MDT Mar 13, 2026
3pm MDT Mar 13, 2026-6pm MDT Mar 19, 2026
 
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Additional Resources

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