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

63°F

17°C

Humidity 9%
Wind Speed WNW 14 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Last update 20 Apr 08:53 PM MDT
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Mostly clear, with a low around 39. West northwest wind 5 to 9 mph becoming south southwest after midnight.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light and variable wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 48. South wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 48 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 71. Windy, with a south wind 10 to 20 mph becoming southwest 23 to 33 mph in the afternoon. Winds could gust as high as 49 mph.

    High: 71 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 38. Windy, with a west southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 37 mph.

    Low: 38 °F

    Mostly Cloudy
    and Windy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of rain and snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 58. Breezy, with a west southwest wind 10 to 17 mph becoming north in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 40%.

    High: 58 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain showers likely before 9pm, then rain and snow showers likely between 9pm and midnight, then snow showers likely after midnight. Mostly cloudy, with a low around 26. Blustery, with a north wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    Low: 26 °F

    Rain/Snow
    Likely and
    Blustery then
    Snow Showers
    Likely

  • Friday

    Friday: A 50 percent chance of snow showers. Partly sunny, with a high near 45.

    High: 45 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 39. West northwest wind 5 to 9 mph becoming south southwest after midnight.
Tuesday
Mostly sunny, with a high near 82. Light and variable wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 48. South wind 10 to 14 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 71. Windy, with a south wind 10 to 20 mph becoming southwest 23 to 33 mph in the afternoon. Winds could gust as high as 49 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 38. Windy, with a west southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 37 mph.
Thursday
A chance of rain and snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 58. Breezy, with a west southwest wind 10 to 17 mph becoming north in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 40%.
Thursday Night
Rain showers likely before 9pm, then rain and snow showers likely between 9pm and midnight, then snow showers likely after midnight. Mostly cloudy, with a low around 26. Blustery, with a north wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of snow showers. Partly sunny, with a high near 45.
Friday Night
A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 23.
Saturday
A 20 percent chance of snow showers. Mostly sunny, with a high near 49.
Saturday Night
A slight chance of snow showers. Mostly cloudy, with a low around 26.
Sunday
A slight chance of snow showers. Partly sunny, with a high near 52.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
A slight chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 59.
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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:
8:16 pm MDT Apr 20, 2026
Forecast Valid:
9pm MDT Apr 20, 2026-6pm MDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation