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

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

19°F

-7°C

Humidity 52%
Wind Speed N 12 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 17 Jan 03:05 AM MST
Extended Forecast for

Riverton WY

  • Overnight

    Overnight: Mostly clear, with a low around 8. North wind around 8 mph.

    Low: 8 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 42. South southwest wind 5 to 8 mph becoming light and variable in the afternoon.

    High: 42 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 18. Light and variable wind becoming south southwest around 5 mph.

    Low: 18 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 41. Calm wind becoming north northeast 5 to 9 mph in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 13. North wind around 5 mph.

    Low: 13 °F

    Mostly Cloudy
    then Patchy
    Fog

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 38. Light and variable wind.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. Calm wind becoming south southwest 5 to 7 mph in the evening.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 8. North wind around 8 mph.
Saturday
Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 42. South southwest wind 5 to 8 mph becoming light and variable in the afternoon.
Saturday Night
Mostly clear, with a low around 18. Light and variable wind becoming south southwest around 5 mph.
Sunday
Mostly sunny, with a high near 41. Calm wind becoming north northeast 5 to 9 mph in the afternoon.
Sunday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 13. North wind around 5 mph.
M.L.King Day
Sunny, with a high near 38. Light and variable wind.
Monday Night
Mostly clear, with a low around 14. Calm wind becoming south southwest 5 to 7 mph in the evening.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Partly cloudy, with a low around 6.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 7.
Friday
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
Last Update:
2:48 am MST Jan 17, 2026
Forecast Valid:
3am MST Jan 17, 2026-6pm MST Jan 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation