Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

54°F

12°C

Humidity 37%
Wind Speed NE 6 MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 31 Mar 07:20 PM MDT
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Scattered showers, mainly after midnight.  Mostly cloudy, with a low around 37. West southwest wind 7 to 11 mph becoming east northeast after midnight.  Chance of precipitation is 40%.

    Low: 37 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers.  Mostly cloudy, with a high near 56. North wind 6 to 8 mph becoming south in the afternoon.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before midnight.  Mostly cloudy, with a low around 34. Northeast wind 6 to 10 mph becoming south southwest after midnight.

    Low: 34 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after noon.  Partly sunny, with a high near 59. Breezy, with a south wind 11 to 16 mph becoming west southwest 19 to 24 mph in the afternoon. Winds could gust as high as 37 mph.  Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers, mainly after midnight.  Mostly cloudy, with a low around 29. 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.  New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow
    Showers and
    Breezy

  • Friday

    Friday: A 50 percent chance of snow showers.  Mostly cloudy, with a high near 46. Northwest wind 10 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph.

    High: 46 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. North northeast wind 7 to 14 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 37. West southwest wind 7 to 11 mph becoming east northeast after midnight. Chance of precipitation is 40%.
Wednesday
Scattered showers. Mostly cloudy, with a high near 56. North wind 6 to 8 mph becoming south in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 34. Northeast wind 6 to 10 mph becoming south southwest after midnight.
Thursday
Showers likely, mainly after noon. Partly sunny, with a high near 59. Breezy, with a south wind 11 to 16 mph becoming west southwest 19 to 24 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 29. 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. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 46. Northwest wind 10 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 23. North northeast wind 7 to 14 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
6:02 pm MDT Mar 31, 2026
7pm MDT Mar 31, 2026-6pm MDT Apr 7, 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