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

31°C

88°F

Humidity 19%
Wind Speed ENE 8 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 5°C (41°F)
Visibility 16 km
Heat Index29°C (84°F)
Last update 12 Jul 07:30 PM MDT
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Mostly clear, with a low around 14. North northeast wind 13 to 18 km/h becoming west northwest 5 to 10 km/h after midnight.

    Low: 14 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 34. Calm wind becoming east 5 to 8 km/h in the afternoon.

    High: 34 °C

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16. South wind around 11 km/h becoming north in the evening.

    Low: 16 °C

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 36. West southwest wind 8 to 13 km/h becoming northwest 16 to 21 km/h in the afternoon. Winds could gust as high as 32 km/h.

    High: 36 °C

    Hot

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 15. North northwest wind 18 to 23 km/h becoming west 11 to 16 km/h after midnight. Winds could gust as high as 34 km/h.

    Low: 15 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 31. Breezy, with a north northeast wind 11 to 16 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 42 km/h. Chance of precipitation is 20%.

    High: 31 °C

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 13. Breezy, with a north northeast wind 21 to 27 km/h, with gusts as high as 40 km/h.

    Low: 13 °C

    Chance
    Showers and
    Breezy then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 27.

    High: 27 °C

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 12.

    Low: 12 °C

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 14. North northeast wind 13 to 18 km/h becoming west northwest 5 to 10 km/h after midnight.
Sunday
Sunny, with a high near 34. Calm wind becoming east 5 to 8 km/h in the afternoon.
Sunday Night
Mostly clear, with a low around 16. South wind around 11 km/h becoming north in the evening.
Monday
Sunny and hot, with a high near 36. West southwest wind 8 to 13 km/h becoming northwest 16 to 21 km/h in the afternoon. Winds could gust as high as 32 km/h.
Monday Night
A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 15. North northwest wind 18 to 23 km/h becoming west 11 to 16 km/h after midnight. Winds could gust as high as 34 km/h.
Tuesday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 31. Breezy, with a north northeast wind 11 to 16 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 42 km/h. Chance of precipitation is 20%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 13. Breezy, with a north northeast wind 21 to 27 km/h, with gusts as high as 40 km/h.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 27.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 12.
Thursday
Sunny, with a high near 30.
Thursday Night
Partly cloudy, with a low around 13.
Friday
Mostly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 14.
Saturday
Sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 m)
Last Update:
5:43 pm MDT Jul 12, 2025
Forecast Valid:
7pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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