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

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

57°F

14°C

Humidity 9%
Wind Speed SSE 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 18 Apr 03:35 PM MDT
Extended Forecast for

Riverton WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 60. South southwest wind 7 to 13 mph becoming northwest.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 25. West northwest wind 5 to 14 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. West southwest wind around 6 mph becoming south southeast in the evening.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. Light southwest wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Breezy, with a light southwest wind becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 82 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47. Breezy.

    Low: 47 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. Very windy.

    High: 73 °F

    Sunny and
    Very Windy

Detailed Forecast

This Afternoon
Sunny, with a high near 60. South southwest wind 7 to 13 mph becoming northwest.
Tonight
Mostly clear, with a low around 25. West northwest wind 5 to 14 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 69. Calm wind becoming south southeast around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 33. West southwest wind around 6 mph becoming south southeast in the evening.
Monday
Mostly sunny, with a high near 79. Light southwest wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 39. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 82. Breezy, with a light southwest wind becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 47. Breezy.
Wednesday
Sunny, with a high near 73. Very windy.
Wednesday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 39. Windy.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 54. Windy.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 27. Blustery.
Friday
A slight chance of snow showers. Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
Last Update:
2:18 pm MDT Apr 18, 2026
Forecast Valid:
3pm MDT Apr 18, 2026-6pm MDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation