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.

Partly Cloudy

40°F

4°C

Humidity 42%
Wind Speed N 0 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 25 Apr 01:53 PM MDT
Extended Forecast for

Riverton WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 52. North wind 7 to 9 mph.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Isolated snow showers after 5am. Increasing clouds, with a low around 27. North wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Partly Cloudy
    then Isolated
    Snow Showers

  • Sunday

    Sunday: Rain and snow showers likely before 1pm, then rain showers. Some thunder is also possible. High near 51. Light and variable wind becoming north northeast 9 to 14 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 51 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow showers, becoming all snow after midnight. Low around 28. Blustery, with a north wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow and
    Blustery then
    Snow Showers

  • Monday

    Monday: A slight chance of snow showers before noon, then a slight chance of rain and snow showers between noon and 3pm, then a slight chance of rain showers after 3pm. Partly sunny, with a high near 52. East wind around 6 mph. Chance of precipitation is 20%.

    High: 52 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 31. Northeast wind 5 to 9 mph becoming calm after midnight.

    Low: 31 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. Light west northwest wind increasing to 5 to 9 mph in the morning.

    High: 57 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 52. North wind 7 to 9 mph.
Tonight
Isolated snow showers after 5am. Increasing clouds, with a low around 27. North wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
Rain and snow showers likely before 1pm, then rain showers. Some thunder is also possible. High near 51. Light and variable wind becoming north northeast 9 to 14 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday Night
Rain and snow showers, becoming all snow after midnight. Low around 28. Blustery, with a north wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow showers before noon, then a slight chance of rain and snow showers between noon and 3pm, then a slight chance of rain showers after 3pm. Partly sunny, with a high near 52. East wind around 6 mph. Chance of precipitation is 20%.
Monday Night
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 31. Northeast wind 5 to 9 mph becoming calm after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. Light west northwest wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 35.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 33.
Friday
Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
Last Update:
12:33 pm MDT Apr 25, 2026
Forecast Valid:
2pm MDT Apr 25, 2026-6pm MDT May 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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