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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

39°F

4°C

Humidity 41%
Wind Speed S 9 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 12 Jan 10:20 AM MST
Extended Forecast for

Riverton WY

  • Today

    Today: Sunny, with a high near 52. South southwest wind around 6 mph becoming east southeast in the afternoon.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Southeast wind around 8 mph becoming southwest after midnight.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. Southwest wind 7 to 11 mph becoming north northwest in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24. Northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 51. Light and variable wind.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 22. South wind 5 to 8 mph becoming west after midnight.

    Low: 22 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 51. West wind 6 to 11 mph becoming north in the afternoon.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 52. South southwest wind around 6 mph becoming east southeast in the afternoon.
Tonight
Mostly clear, with a low around 26. Southeast wind around 8 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 55. Southwest wind 7 to 11 mph becoming north northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 24. Northwest wind 5 to 7 mph becoming southwest after midnight.
Wednesday
Sunny, with a high near 51. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 22. South wind 5 to 8 mph becoming west after midnight.
Thursday
Sunny, with a high near 51. West wind 6 to 11 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 16.
Friday
Mostly sunny, with a high near 39.
Friday Night
Partly cloudy, with a low around 15.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 18.
Sunday
Sunny, with a high near 49.
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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:
9:17 am MST Jan 12, 2026
Forecast Valid:
10am MST Jan 12, 2026-6pm MST Jan 18, 2026
 
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Additional Resources

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