Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Wednesday

In the Upper Midwest, heavy to excessive rain may bring flash and urban flooding through Wednesday. Scattered severe thunderstorms capable of large hail and damaging wind gusts are possible from the central High Plains into the Upper Midwest Wednesday. Extreme heat is ongoing over the Desert Southwest through Thursday. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

79°F

26°C

Humidity 29%
Wind Speed SE 4 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 07 Jul 07:35 PM MDT
Extended Forecast for

10 Miles S Saint Stephens WY

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm. Some of the storms could be severe.  Partly cloudy, with a low around 61. West wind 6 to 9 mph becoming south southeast after midnight.  Chance of precipitation is 10%.

    Low: 61 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Isolated showers and thunderstorms after 4pm.  Increasing clouds, with a high near 84. South southwest wind 5 to 9 mph becoming north in the afternoon.  Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Isolated
    T-storms

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms, mainly before 7pm.  Mostly cloudy, with a low around 59. East wind 6 to 14 mph becoming northwest in the evening. Winds could gust as high as 20 mph.  Chance of precipitation is 30%.

    Low: 59 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm.  Mostly sunny, with a high near 83. South southwest wind 6 to 8 mph becoming north in the afternoon.  Chance of precipitation is 10%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. North wind around 8 mph becoming south after midnight.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. South wind around 7 mph becoming west northwest in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. South southwest wind around 8 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 9pm. Some of the storms could be severe. Partly cloudy, with a low around 61. West wind 6 to 9 mph becoming south southeast after midnight. Chance of precipitation is 10%.
Wednesday
Isolated showers and thunderstorms after 4pm. Increasing clouds, with a high near 84. South southwest wind 5 to 9 mph becoming north in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Scattered showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 59. East wind 6 to 14 mph becoming northwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm. Mostly sunny, with a high near 83. South southwest wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 57. North wind around 8 mph becoming south after midnight.
Friday
Sunny, with a high near 87. South wind around 7 mph becoming west northwest in the afternoon.
Friday Night
Mostly clear, with a low around 62. South southwest wind around 8 mph.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Mostly clear, with a low around 67. Breezy.
Monday
Sunny, with a high near 96.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S Saint Stephens WY
 42.82°N 108.15°W (Elev. 6158 ft)
6:01 pm MDT Jul 7, 2026
7pm MDT Jul 7, 2026-6pm MDT Jul 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database