National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

81°F

27°C

Humidity 18%
Wind Speed NE 12 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 Jun 06:35 PM MDT
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Partly cloudy, with a low around 54. Breezy, with a north northeast wind 10 to 15 mph becoming light and variable. Winds could gust as high as 23 mph.

    Low: 54 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. Breezy, with a light and variable wind becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A slight chance of thunderstorms before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 51. North wind 5 to 14 mph becoming west southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. West northwest wind around 6 mph becoming north northeast in the afternoon.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49. East northeast wind 5 to 9 mph becoming south southwest after midnight.

    Low: 49 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Breezy, with a southwest wind 5 to 10 mph becoming north northeast 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 83 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Breezy, with a north northeast wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.

    Low: 48 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 54. Breezy, with a north northeast wind 10 to 15 mph becoming light and variable. Winds could gust as high as 23 mph.
Saturday
A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. Breezy, with a light and variable wind becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Saturday Night
A slight chance of thunderstorms before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 51. North wind 5 to 14 mph becoming west southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Sunday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. West northwest wind around 6 mph becoming north northeast in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49. East northeast wind 5 to 9 mph becoming south southwest after midnight.
Monday
Sunny, with a high near 83. Breezy, with a southwest wind 5 to 10 mph becoming north northeast 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.
Monday Night
Mostly clear, with a low around 48. Breezy, with a north northeast wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Clear, with a low around 50.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 91.
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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:
6:01 pm MDT Jun 19, 2026
Forecast Valid:
6pm MDT Jun 19, 2026-6pm MDT Jun 26, 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