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

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

70°F

21°C

Humidity 9%
Wind Speed ESE 6 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 20 Apr 12:35 PM MDT
Extended Forecast for

6 Miles S Lysite WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. Breezy, with a southwest wind 6 to 15 mph becoming west northwest. Winds could gust as high as 21 mph.

    High: 75 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 41. Breezy, with a west northwest wind 7 to 15 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.

    Low: 41 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. South southwest wind 5 to 13 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. South wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70. Windy, with a south southwest wind 14 to 24 mph increasing to 24 to 34 mph in the afternoon. Winds could gust as high as 48 mph.

    High: 70 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: A slight chance of rain showers after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 36. Windy, with a west southwest wind 25 to 30 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain/Snow and
    Windy

  • Thursday

    Thursday: Rain likely, possibly mixed with snow showers, mainly after noon. Mostly cloudy, with a high near 52. Breezy, with a west wind 15 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 60%.

    High: 52 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Rain showers before 9pm, then rain and snow showers between 9pm and midnight, then snow showers likely after midnight. Low around 24. Blustery. Chance of precipitation is 80%.

    Low: 24 °F

    Rain/Snow and
    Blustery then
    Snow Showers
    Likely

  • Friday

    Friday: Snow showers likely. Partly sunny, with a high near 42. Chance of precipitation is 60%.

    High: 42 °F

    Snow Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 75. Breezy, with a southwest wind 6 to 15 mph becoming west northwest. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 41. Breezy, with a west northwest wind 7 to 15 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.
Tuesday
Mostly sunny, with a high near 78. South southwest wind 5 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 50. South wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 70. Windy, with a south southwest wind 14 to 24 mph increasing to 24 to 34 mph in the afternoon. Winds could gust as high as 48 mph.
Wednesday Night
A slight chance of rain showers after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 36. Windy, with a west southwest wind 25 to 30 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 20%.
Thursday
Rain likely, possibly mixed with snow showers, mainly after noon. Mostly cloudy, with a high near 52. Breezy, with a west wind 15 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 60%.
Thursday Night
Rain showers before 9pm, then rain and snow showers between 9pm and midnight, then snow showers likely after midnight. Low around 24. Blustery. Chance of precipitation is 80%.
Friday
Snow showers likely. Partly sunny, with a high near 42. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 21.
Saturday
A chance of snow showers. Mostly sunny, with a high near 46.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 24.
Sunday
A chance of snow showers. Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Lysite WY
 43.15°N 107.71°W (Elev. 5476 ft)
Last Update:
12:32 pm MDT Apr 20, 2026
Forecast Valid:
12pm MDT Apr 20, 2026-6pm MDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation