Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

72°F

22°C

Humidity 43%
Wind Speed NNW 3 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 26 Jul 02:35 AM MDT
Extended Forecast for

8 Miles N Saint Stephens WY

Heat Advisory July 26, 02:53am until July 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 26, 02:53am until July 26, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Overnight

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 3pm.  Sunny and hot, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67. North wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 21 mph.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms between 3pm and 5pm.  Mostly sunny, with a high near 94. South southeast wind 5 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 10%.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 65. North northwest wind 6 to 11 mph becoming light and variable.

    Low: 65 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Light and variable wind becoming northwest 5 to 7 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 65. Northwest wind around 7 mph becoming south southeast in the evening.

    Low: 65 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Southwest wind around 7 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 67. North wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 21 mph.
Monday
A slight chance of showers and thunderstorms between 3pm and 5pm. Mostly sunny, with a high near 94. South southeast wind 5 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 10%.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 65. North northwest wind 6 to 11 mph becoming light and variable.
Tuesday
Sunny, with a high near 94. Light and variable wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 65. Northwest wind around 7 mph becoming south southeast in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 64.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny and hot, with a high near 97.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny and hot, with a high near 98.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N Saint Stephens WY
 43.08°N 108.15°W (Elev. 5331 ft)
2:01 am MDT Jul 26, 2026
2am MDT Jul 26, 2026-6pm MDT Aug 1, 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