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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

9°F

-13°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 29 Dec 08:20 AM MST
Extended Forecast for

Riverton WY

  • Today

    Today: Sunny, with a high near 35. Wind chill values as low as zero. Northeast wind 3 to 5 mph.

    High: 35 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 15. East northeast wind around 5 mph becoming light and variable.

    Low: 15 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 15. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 15 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. South wind around 5 mph becoming light and variable in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. South wind 3 to 6 mph.

    Low: 19 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 45. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 45 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 35. Wind chill values as low as zero. Northeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 15. East northeast wind around 5 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 41. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 15. Calm wind becoming south southwest around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 43. South wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 19. South wind 3 to 6 mph.
New Year's Day
Mostly cloudy, with a high near 45. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
Last Update:
7:47 am MST Dec 29, 2025
Forecast Valid:
8am MST Dec 29, 2025-6pm MST Jan 4, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation