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

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Partly Cloudy

37°F

3°C

Humidity 74%
Wind Speed ENE 19 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 31 Mar 02:05 AM MDT
Extended Forecast for

8 Miles NE Riverton WY

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. East northeast wind around 14 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers between 9am and 3pm. Mostly cloudy, with a high near 62. Breezy, with an east wind 6 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 62 °F

    Chance
    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 37. East wind 6 to 10 mph becoming west southwest after midnight.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after noon. Mostly cloudy, with a high near 61. North wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 35. North northeast wind 6 to 9 mph becoming south southwest after midnight.

    Low: 35 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers. Partly sunny, with a high near 60. Windy, with a south wind 10 to 15 mph becoming west southwest 20 to 25 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 60 °F

    Chance
    Showers and
    Windy

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 28. Breezy, with a west wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 50%.

    Low: 28 °F

    Chance
    Rain/Snow and
    Breezy then
    Chance Snow
    Showers

  • Friday

    Friday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 23. Blustery.

    Low: 23 °F

    Chance Snow
    Showers and
    Blustery then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. East northeast wind around 14 mph, with gusts as high as 20 mph.
Tuesday
A chance of rain and snow showers between 9am and 3pm. Mostly cloudy, with a high near 62. Breezy, with an east wind 6 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday Night
A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 37. East wind 6 to 10 mph becoming west southwest after midnight.
Wednesday
Showers likely, mainly after noon. Mostly cloudy, with a high near 61. North wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 35. North northeast wind 6 to 9 mph becoming south southwest after midnight.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 60. Windy, with a south wind 10 to 15 mph becoming west southwest 20 to 25 mph in the afternoon. Winds could gust as high as 39 mph.
Thursday Night
A chance of rain and snow showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 28. Breezy, with a west wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 50%.
Friday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 46.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 23. Blustery.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 26.
Sunday
Sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NE Riverton WY
 43.09°N 108.27°W (Elev. 4833 ft)
Last Update:
2:03 am MDT Mar 31, 2026
Forecast Valid:
2am MDT Mar 31, 2026-6pm MDT Apr 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation