Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Partly Cloudy

39°F

4°C

Humidity 41%
Wind Speed SW 14 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 10 Mar 02:05 PM MDT
Extended Forecast for

14 Miles S Saint Stephens WY

High Wind Watch March 12, 09:00am until March 12, 09:00pm
Click here for hazard details and duration
High Wind Watch
  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 41. Windy, with a west wind 20 to 25 mph increasing to 26 to 31 mph. Winds could gust as high as 46 mph.

    High: 41 °F

    Mostly Cloudy
    and Windy

  • Tonight

    Tonight: A slight chance of snow showers between 7pm and 1am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Windy, with a west wind 18 to 28 mph decreasing to 7 to 17 mph after midnight. Winds could gust as high as 43 mph.  Chance of precipitation is 20%.

    Low: 18 °F

    Slight Chance
    Snow Showers
    and Windy

  • Wednesday

    Wednesday: Sunny, with a high near 43. Breezy, with a southwest wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 43 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. Breezy, with a south southwest wind 18 to 23 mph, with gusts as high as 29 mph.

    Low: 32 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Partly sunny, with a high near 57. Windy, with a west wind 23 to 28 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 57 °F

    Partly Sunny
    and Windy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Windy, with a southwest wind 28 to 33 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 45 mph.

    Low: 40 °F

    Mostly Cloudy
    and Windy

  • Friday

    Friday: Partly sunny, with a high near 60. Windy, with a west wind 21 to 29 mph, with gusts as high as 44 mph.

    High: 60 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Windy.

    Low: 42 °F

    Mostly Cloudy
    and Windy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after noon.  Partly sunny, with a high near 57. Very windy.

    High: 57 °F

    Chance
    Showers and
    Very Windy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 41. Windy, with a west wind 20 to 25 mph increasing to 26 to 31 mph. Winds could gust as high as 46 mph.
Tonight
A slight chance of snow showers between 7pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Windy, with a west wind 18 to 28 mph decreasing to 7 to 17 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 43. Breezy, with a southwest wind 7 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 32. Breezy, with a south southwest wind 18 to 23 mph, with gusts as high as 29 mph.
Thursday
Partly sunny, with a high near 57. Windy, with a west wind 23 to 28 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph.
Thursday Night
Mostly cloudy, with a low around 40. Windy, with a southwest wind 28 to 33 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 45 mph.
Friday
Partly sunny, with a high near 60. Windy, with a west wind 21 to 29 mph, with gusts as high as 44 mph.
Friday Night
Mostly cloudy, with a low around 42. Windy.
Saturday
A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 57. Very windy.
Saturday Night
Rain and snow showers likely, becoming all snow after midnight. Mostly cloudy, with a low around 19. Windy. Chance of precipitation is 60%.
Sunday
A slight chance of snow showers. Partly sunny, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles S Saint Stephens WY
 42.75°N 108.17°W (Elev. 6047 ft)
2:02 pm MDT Mar 10, 2026
2pm MDT Mar 10, 2026-6pm MDT Mar 16, 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