Isolated Severe Storms in the Midwest; Fire Weather Concerns in the Northern Plains; Record Heat in the West

Isolated severe storms are possible across parts of the Florida Peninsula and the Great Lakes to Lower Missouri Valley and south-central Plains late this afternoon and early evening. Elevated to critical fire weather concerns continue over much of the northern Great Plains. Above average temperatures persist across portions of the West today. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

79°F

26°C

Humidity 15%
Wind Speed E 6 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 May 06:15 PM MDT
Extended Forecast for

7 Miles WNW Riverton Regional Airport WY

  • Tonight

    Tonight: Mostly clear, with a low around 48. East northeast wind 5 to 8 mph becoming north northwest after midnight.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 4pm.  Increasing clouds, with a high near 92. Very windy, with a light and variable wind becoming south southwest 32 to 37 mph in the afternoon. Winds could gust as high as 55 mph.

    High: 92 °F

    Sunny then
    Chance
    Showers and
    Very Windy

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 8pm and 10pm.  Cloudy during the early evening, then gradual clearing, with a low around 50. Breezy, with a southwest wind 17 to 22 mph becoming west 6 to 11 mph. Winds could gust as high as 36 mph.  Chance of precipitation is 20%.

    Low: 50 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Breezy, with a west wind 15 to 23 mph, with gusts as high as 36 mph.

    High: 76 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Clear, with a low around 42. Breezy, with a west southwest wind 11 to 21 mph, with gusts as high as 32 mph.

    Low: 42 °F

    Clear and
    Breezy then
    Clear

  • Friday

    Friday: Sunny, with a high near 77. Windy, with a west wind 6 to 16 mph increasing to 20 to 30 mph. Winds could gust as high as 43 mph.

    High: 77 °F

    Sunny then
    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Breezy, with a west wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 77. Breezy.

    High: 77 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. Breezy.

    Low: 41 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Tonight
Mostly clear, with a low around 48. East northeast wind 5 to 8 mph becoming north northwest after midnight.
Wednesday
A 30 percent chance of showers, mainly after 4pm. Increasing clouds, with a high near 92. Very windy, with a light and variable wind becoming south southwest 32 to 37 mph in the afternoon. Winds could gust as high as 55 mph.
Wednesday Night
A slight chance of showers between 8pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 50. Breezy, with a southwest wind 17 to 22 mph becoming west 6 to 11 mph. Winds could gust as high as 36 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 76. Breezy, with a west wind 15 to 23 mph, with gusts as high as 36 mph.
Thursday Night
Clear, with a low around 42. Breezy, with a west southwest wind 11 to 21 mph, with gusts as high as 32 mph.
Friday
Sunny, with a high near 77. Windy, with a west wind 6 to 16 mph increasing to 20 to 30 mph. Winds could gust as high as 43 mph.
Friday Night
Mostly clear, with a low around 42. Breezy, with a west wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph.
Saturday
Sunny, with a high near 77. Breezy.
Saturday Night
Mostly cloudy, with a low around 41. Breezy.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 59. Breezy. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Breezy.
Monday
A chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WNW Riverton Regional Airport WY
 43.09°N 108.57°W (Elev. 5335 ft)
5:02 pm MDT May 12, 2026
6pm MDT May 12, 2026-6pm MDT May 19, 2026
 
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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