National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

Lat: 43.06219°NLon: 108.44701°WElev: 5443.0ft.

Clear

25°F

-4°C

Humidity 58%
Wind Speed ESE 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 21 Jan 11:20 AM MST
Extended Forecast for

8 Miles NE Riverton WY

  • Today

    Today: Sunny, with a high near 33. North northeast wind 5 to 7 mph.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 7. Light northeast wind.

    Low: 7 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29. Wind chill values as low as zero. Calm wind becoming northeast 5 to 8 mph in the morning.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 5. Wind chill values as low as -5. East northeast wind 8 to 10 mph.

    Low: 5 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow showers before 11am. Mostly cloudy, with a high near 21. East northeast wind 6 to 10 mph.

    High: 21 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -2. North northeast wind 5 to 8 mph becoming calm after midnight.

    Low: -2 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 26. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 26 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 0.

    Low: 0 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 33. North northeast wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 7. Light northeast wind.
Thursday
Mostly sunny, with a high near 29. Wind chill values as low as zero. Calm wind becoming northeast 5 to 8 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 5. Wind chill values as low as -5. East northeast wind 8 to 10 mph.
Friday
A 20 percent chance of snow showers before 11am. Mostly cloudy, with a high near 21. East northeast wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around -2. North northeast wind 5 to 8 mph becoming calm after midnight.
Saturday
Sunny, with a high near 26. Calm wind becoming north northeast around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 0.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NE Riverton WY
 43.09°N 108.27°W (Elev. 4833 ft)
Last Update:
10:47 am MST Jan 21, 2026
Forecast Valid:
11am MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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