Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

28°F

-2°C

Humidity 42%
Wind Speed NNE 4 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 19 Jan 05:20 PM MST
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Mostly clear, with a low around 14. Southwest wind 5 to 11 mph.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. West southwest wind 5 to 14 mph becoming northeast in the afternoon. Winds could gust as high as 21 mph.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10. North wind around 6 mph becoming south southwest in the evening.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 36. Wind chill values as low as zero. West northwest wind 5 to 7 mph becoming northeast in the afternoon.

    High: 36 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. Northeast wind around 5 mph becoming light and variable  in the evening.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34. Northeast wind 3 to 8 mph.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 7. East northeast wind around 8 mph.

    Low: 7 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 14. Southwest wind 5 to 11 mph.
Tuesday
Mostly sunny, with a high near 42. West southwest wind 5 to 14 mph becoming northeast in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 10. North wind around 6 mph becoming south southwest in the evening.
Wednesday
Sunny, with a high near 36. Wind chill values as low as zero. West northwest wind 5 to 7 mph becoming northeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 8. Northeast wind around 5 mph becoming light and variable in the evening.
Thursday
Mostly sunny, with a high near 34. Northeast wind 3 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 7. East northeast wind around 8 mph.
Friday
Partly sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 3.
Saturday
Sunny, with a high near 35.
Saturday Night
Mostly clear, with a low around 8.
Sunday
Sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
4:47 pm MST Jan 19, 2026
5pm MST Jan 19, 2026-6pm MST Jan 26, 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