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

5°F

-15°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Last update 21 Jan 04:35 AM MST
Extended Forecast for

3 Miles NNW Riverton Regional Airport WY

  • Today

    Today: Sunny, with a high near 34. West wind 5 to 9 mph becoming northeast in the afternoon.

    High: 34 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 8. North northwest wind around 6 mph.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28. Wind chill values as low as zero. Northeast wind 5 to 10 mph.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6. Wind chill values as low as -5. East northeast wind 9 to 11 mph.

    Low: 6 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 19. Northeast wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 19 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -1. North northeast wind 5 to 11 mph becoming west after midnight.

    Low: -1 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 26. Light and variable wind becoming northeast around 6 mph in the afternoon.

    High: 26 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2.

    Low: 2 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 34. West wind 5 to 9 mph becoming northeast in the afternoon.
Tonight
Partly cloudy, with a low around 8. North northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 28. Wind chill values as low as zero. Northeast wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 6. Wind chill values as low as -5. East northeast wind 9 to 11 mph.
Friday
Partly sunny, with a high near 19. Northeast wind 7 to 13 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around -1. North northeast wind 5 to 11 mph becoming west after midnight.
Saturday
Sunny, with a high near 26. Light and variable wind becoming northeast around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 2.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 6.
Monday
Mostly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Riverton Regional Airport WY
 43.1°N 108.48°W (Elev. 5440 ft)
Last Update:
3:47 am MST Jan 21, 2026
Forecast Valid:
4am MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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Additional Resources

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