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

46°F

8°C

Humidity 31%
Wind Speed SSW 9 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 15 Apr 10:05 AM MDT
Extended Forecast for

3 Miles WNW Arapahoe WY

  • Today

    Today: Mostly sunny, with a high near 66. Breezy, with a west southwest wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 66 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Isolated showers before 3am, then isolated showers after 4am. Partly cloudy, with a low around 42. Breezy, with a west southwest wind 19 to 24 mph becoming south 13 to 18 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 20%.

    Low: 42 °F

    Breezy.
    Mostly Cloudy
    then Isolated
    Showers

  • Thursday

    Thursday: Scattered rain showers before 9am, then scattered rain and snow showers between 9am and 10am, then rain showers likely after 10am. Some thunder is also possible. Increasing clouds, with a high near 62. Breezy, with a south wind 15 to 24 mph becoming north northwest in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 62 °F

    Breezy.
    Scattered
    Rain/Snow
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Snow showers, possibly mixed with rain, becoming all snow after 9pm. Low around 25. Blustery, with a north wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 25 °F

    Rain/Snow and
    Blustery then
    Snow Showers

  • Friday

    Friday: Snow showers likely, mainly before noon. Mostly cloudy, with a high near 40. North wind 9 to 11 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 40 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 17. Northeast wind 6 to 11 mph becoming west southwest in the evening.

    Low: 17 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53. West southwest wind 6 to 9 mph becoming south southeast in the morning.

    High: 53 °F

    Sunny

  • Saturday Night

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

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 66. Breezy, with a west southwest wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.
Tonight
Isolated showers before 3am, then isolated showers after 4am. Partly cloudy, with a low around 42. Breezy, with a west southwest wind 19 to 24 mph becoming south 13 to 18 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 20%.
Thursday
Scattered rain showers before 9am, then scattered rain and snow showers between 9am and 10am, then rain showers likely after 10am. Some thunder is also possible. Increasing clouds, with a high near 62. Breezy, with a south wind 15 to 24 mph becoming north northwest in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
Snow showers, possibly mixed with rain, becoming all snow after 9pm. Low around 25. Blustery, with a north wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow showers likely, mainly before noon. Mostly cloudy, with a high near 40. North wind 9 to 11 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 17. Northeast wind 6 to 11 mph becoming west southwest in the evening.
Saturday
Sunny, with a high near 53. West southwest wind 6 to 9 mph becoming south southeast in the morning.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 38. Breezy.
Tuesday
Sunny, with a high near 74. Breezy.
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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:
8:48 am MDT Apr 15, 2026
Forecast Valid:
10am MDT Apr 15, 2026-6pm MDT Apr 21, 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