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

N/A

Humidity 75%
Wind Speed NE 6 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 01 Apr 11:45 PM MDT
Extended Forecast for

3 Miles WNW Arapahoe WY

  • Overnight

    Overnight: Partly cloudy, with a low around 35. Northwest wind 7 to 9 mph.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 67. West northwest wind 6 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 21 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34. Breezy, with an east northeast wind 7 to 15 mph, with gusts as high as 23 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 72. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Southwest wind 6 to 11 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 73. Windy, with a south southwest wind 6 to 11 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%.

    High: 73 °F

    Mostly Sunny
    and Breezy
    then Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 41. Breezy, with a south southwest wind 19 to 24 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 33 mph.

    Low: 41 °F

    Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 68. Windy.

    High: 68 °F

    Mostly Sunny
    and Windy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 37. Breezy.

    Low: 37 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 35. Northwest wind 7 to 9 mph.
Thursday
Sunny, with a high near 67. West northwest wind 6 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 34. Breezy, with an east northeast wind 7 to 15 mph, with gusts as high as 23 mph.
Friday
Partly sunny, with a high near 72. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 40. Southwest wind 6 to 11 mph.
Saturday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 73. Windy, with a south southwest wind 6 to 11 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 41. Breezy, with a south southwest wind 19 to 24 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 33 mph.
Sunday
Mostly sunny, with a high near 68. Windy.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 37. Breezy.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 59.
Monday Night
A chance of showers. Mostly cloudy, with a low around 34.
Tuesday
A chance of showers. Partly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Arapahoe WY
 42.99°N 108.56°W (Elev. 5197 ft)
Last Update:
12:32 am MDT Apr 9, 2026
Forecast Valid:
2am MDT Apr 9, 2026-6pm MDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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