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

Riverton Regional Airport (KRIW)

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

Clear

36°F

2°C

Humidity 56%
Wind Speed NE 5 MPH
Barometer 30.44 in (1030.82 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 03 Feb 06:53 PM MST
Extended Forecast for

3 Miles WNW Arapahoe WY

  • Tonight

    Tonight: Mostly clear, with a low around 21. North northeast wind around 6 mph becoming light and variable after midnight.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25. Southwest wind around 5 mph becoming calm after midnight.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. South wind around 5 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. Southwest wind around 7 mph.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 21. North northeast wind around 6 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 53. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 25. Southwest wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 57. Light and variable wind.
Thursday Night
Mostly clear, with a low around 26. South wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 57. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 29. Southwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 56.
Monday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 26.
Tuesday
A chance of rain and snow showers. Mostly cloudy, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Arapahoe WY
 42.99°N 108.56°W (Elev. 5197 ft)
Last Update:
5:31 pm MST Feb 3, 2026
Forecast Valid:
7pm MST Feb 3, 2026-6pm MST Feb 10, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation