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

16°F

-9°C

Humidity 78%
Wind Speed WSW 3 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 20 Jan 09:20 PM MST
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Mostly clear, with a low around 8. Southwest wind 5 to 8 mph.

    Low: 8 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 36. Calm wind becoming northeast 5 to 8 mph in the afternoon.

    High: 36 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 7. Northeast wind around 6 mph becoming light and variable  in the evening.

    Low: 7 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 31. Wind chill values as low as zero. North northeast wind 3 to 7 mph.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 6. Northeast wind 6 to 9 mph.

    Low: 6 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 23. Northeast wind 5 to 8 mph.

    High: 23 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2. North wind 5 to 7 mph.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 29.

    High: 29 °F

    Sunny

  • Saturday Night

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

    Low: 2 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 8. Southwest wind 5 to 8 mph.
Wednesday
Sunny, with a high near 36. Calm wind becoming northeast 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 7. Northeast wind around 6 mph becoming light and variable in the evening.
Thursday
Mostly sunny, with a high near 31. Wind chill values as low as zero. North northeast wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 6. Northeast wind 6 to 9 mph.
Friday
Partly sunny, with a high near 23. Northeast wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 2. North wind 5 to 7 mph.
Saturday
Sunny, with a high near 29.
Saturday Night
Mostly clear, with a low around 2.
Sunday
Sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 8.
Monday
Mostly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
9:31 pm MST Jan 20, 2026
9pm MST Jan 20, 2026-6pm MST Jan 27, 2026
 
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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