Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Overcast

7°F

-14°C

Humidity 69%
Wind Speed N 9 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 23 Jan 06:53 PM MST
Extended Forecast for

3 Miles WNW Arapahoe WY

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around -2. North northeast wind 8 to 13 mph becoming light  after midnight.

    Low: -2 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 23. Wind chill values as low as zero. Calm wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 23 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2. Wind chill values as low as -5. North wind around 6 mph becoming west in the evening.

    Low: 2 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow showers before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 20. Wind chill values as low as -5. North wind 6 to 10 mph becoming east northeast in the afternoon.

    High: 20 °F

    Chance Snow
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -2. South southeast wind around 6 mph becoming west southwest after midnight.

    Low: -2 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 39. Southwest wind around 6 mph.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. West southwest wind around 7 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around -2. North northeast wind 8 to 13 mph becoming light after midnight.
Saturday
Sunny, with a high near 23. Wind chill values as low as zero. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 2. Wind chill values as low as -5. North wind around 6 mph becoming west in the evening.
Sunday
A 30 percent chance of snow showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 20. Wind chill values as low as -5. North wind 6 to 10 mph becoming east northeast in the afternoon.
Sunday Night
Mostly clear, with a low around -2. South southeast wind around 6 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 39. Southwest wind around 6 mph.
Monday Night
Partly cloudy, with a low around 14. West southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Arapahoe WY
 42.99°N 108.56°W (Elev. 5197 ft)
6:32 pm MST Jan 23, 2026
7pm MST Jan 23, 2026-6pm MST Jan 30, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database