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Storm Moving from Western into Central U.S. through Wednesday

A storm system moving over the Rockies Wednesday will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Moderate snow is expected from northwestern Wyoming into southern Montana. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

Lat: 43.06219°NLon: 108.44701°WElev: 5443.0ft.

Partly Cloudy

52°F

11°C

Humidity 61%
Wind Speed NE 5 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 14 Oct 07:53 PM MDT
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Mostly clear, with a low around 37. North wind around 6 mph becoming east southeast in the evening.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 67. Breezy, with a light and variable wind becoming south southeast 19 to 24 mph in the morning. Winds could gust as high as 33 mph.

    High: 67 °F

    Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers after midnight. Partly cloudy, with a low around 37. Breezy, with a south wind 6 to 16 mph becoming northwest in the evening. Winds could gust as high as 23 mph.

    Low: 37 °F

    Mostly Clear
    and Breezy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 53. West wind around 7 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 32. Northwest wind 5 to 7 mph becoming southwest in the evening.

    Low: 32 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 60. Southwest wind 6 to 11 mph becoming west northwest in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. West southwest wind around 8 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 37. North wind around 6 mph becoming east southeast in the evening.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 67. Breezy, with a light and variable wind becoming south southeast 19 to 24 mph in the morning. Winds could gust as high as 33 mph.
Wednesday Night
A 50 percent chance of showers after midnight. Partly cloudy, with a low around 37. Breezy, with a south wind 6 to 16 mph becoming northwest in the evening. Winds could gust as high as 23 mph.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 53. West wind around 7 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 32. Northwest wind 5 to 7 mph becoming southwest in the evening.
Friday
Mostly sunny, with a high near 60. Southwest wind 6 to 11 mph becoming west northwest in the afternoon.
Friday Night
Mostly clear, with a low around 32. West southwest wind around 8 mph.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 68.
Sunday Night
A slight chance of showers. Mostly clear, with a low around 37.
Monday
A chance of showers. Mostly sunny, with a high near 60.
Monday Night
A chance of rain and snow showers. Partly cloudy, with a low around 31.
Tuesday
A chance of rain and snow showers. Mostly sunny, with a high near 52.
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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:
7:17 pm MDT Oct 14, 2025
Forecast Valid:
8pm MDT Oct 14, 2025-6pm MDT Oct 21, 2025
 
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