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

Heavy Snow in the Central/Southern Rockies; Below Average Temperatures in the Central and Eastern US

Moderate to heavy snowfall is expected in the central/southern Rockies and adjacent High Plains today. Lake-enhanced snowfall is expected downwind of the Great Lakes today. Showers and thunderstorms will be possible this evening into tonight across the western Gulf Coast states. Temperatures across much of the central and eastern CONUS will remain below average and chilly to end the week. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Overcast

28°F

-2°C

Humidity 68%
Wind Speed NE 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 03 Dec 09:05 AM MST
Extended Forecast for

Riverton WY

  • Today

    Today: Sunny, with a high near 34. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 34 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 9. Wind chill values as low as zero. Calm wind becoming southwest 5 to 9 mph after midnight.

    Low: 9 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 37. Wind chill values as low as zero. South southwest wind 5 to 7 mph.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14. West southwest wind around 7 mph.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 36. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18. Southwest wind around 7 mph.

    Low: 18 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 44. Southwest wind around 7 mph becoming northwest in the afternoon.

    High: 44 °F

    Slight Chance
    Snow Showers
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 34. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 9. Wind chill values as low as zero. Calm wind becoming southwest 5 to 9 mph after midnight.
Thursday
Mostly sunny, with a high near 37. Wind chill values as low as zero. South southwest wind 5 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 14. West southwest wind around 7 mph.
Friday
Mostly sunny, with a high near 36. Light and variable wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 18. Southwest wind around 7 mph.
Saturday
A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 44. Southwest wind around 7 mph becoming northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 50.
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:
9:01 am MST Dec 3, 2025
Forecast Valid:
9am MST Dec 3, 2025-6pm MST Dec 9, 2025
 
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