Severe Thunderstorms in the Central Plains; Heavy Rainfall in the Mississippi and Tennessee Valleys; Critical Fire Weather in the Southwest

Scattered severe storms capable of large to very large hail, severe wind gusts, and a few tornadoes will be possible across the central Plains. Heavy rain will pose a flash flood threat across portions of the Mississippi Valley into the Tennessee and Ohio Valleys. Hot, dry and windy conditions will continue to bring a critical fire weather threat from the Southwest into the Great Basin. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

73°F

23°C

Humidity 23%
Wind Speed NE 4 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 08 Jun 02:35 PM MDT
Extended Forecast for

Arapahoe WY

  • This Afternoon

    This Afternoon: Sunny early, then becoming mostly cloudy, with a high near 84. Northwest wind 6 to 13 mph becoming southwest. Winds could gust as high as 22 mph.

    High: 84 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 79. Windy, with a southwest wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 79 °F

    Decreasing
    Clouds and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 44. Breezy, with a west wind 17 to 22 mph becoming west southwest 11 to 16 mph after midnight. Winds could gust as high as 32 mph.

    Low: 44 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Windy, with a south southwest wind 11 to 21 mph becoming west 23 to 33 mph in the afternoon. Winds could gust as high as 47 mph.

    High: 73 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. Windy, with a west wind 19 to 29 mph decreasing to 6 to 16 mph. Winds could gust as high as 44 mph.

    Low: 39 °F

    Mostly Clear
    and Windy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Southwest wind 5 to 8 mph becoming east northeast in the morning.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny early, then becoming mostly cloudy, with a high near 84. Northwest wind 6 to 13 mph becoming southwest. Winds could gust as high as 22 mph.
Tonight
Mostly cloudy, with a low around 54. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 79. Windy, with a southwest wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 41 mph.
Tuesday Night
Mostly cloudy, then gradually becoming clear, with a low around 44. Breezy, with a west wind 17 to 22 mph becoming west southwest 11 to 16 mph after midnight. Winds could gust as high as 32 mph.
Wednesday
Sunny, with a high near 73. Windy, with a south southwest wind 11 to 21 mph becoming west 23 to 33 mph in the afternoon. Winds could gust as high as 47 mph.
Wednesday Night
Mostly clear, with a low around 39. Windy, with a west wind 19 to 29 mph decreasing to 6 to 16 mph. Winds could gust as high as 44 mph.
Thursday
Sunny, with a high near 76. Southwest wind 5 to 8 mph becoming east northeast in the morning.
Thursday Night
Clear, with a low around 43.
Friday
Sunny, with a high near 86.
Friday Night
Clear, with a low around 48.
Saturday
Sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 45. Breezy.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe WY
 42.97°N 108.46°W (Elev. 4993 ft)
2:03 pm MDT Jun 8, 2026
2pm MDT Jun 8, 2026-6pm MDT Jun 14, 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