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

Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Hazardous Weather Conditions

Current conditions at

Powell Municipal Airport (KPOY)

Lat: 44.8672°NLon: 108.7934°WElev: 5092.0ft.

Clear

79°F

26°C

Humidity 24%
Wind Speed ENE 5 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 Aug 02:30 PM MDT
Extended Forecast for

6 Miles NNW Powell WY

Severe T-storm Watch until August 18, 09:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 18, 09:00pm

    NOW until 9:00pm Tue

    Severe T-storm Watch

  • This Afternoon

    High: 76 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. North northwest wind 6 to 14 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.

    Low: 53 °F

    Severe
    Thunderstorms
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. East southeast wind 6 to 8 mph becoming north in the afternoon.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. North wind 5 to 10 mph becoming west southwest after midnight.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. West southwest wind 5 to 9 mph becoming east northeast in the afternoon.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. Light and variable wind becoming west around 6 mph after midnight.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 86. West northwest wind around 6 mph becoming northeast in the morning.

    High: 86 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 76. Breezy, with an east northeast wind 11 to 15 mph becoming west northwest. Winds could gust as high as 22 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. North northwest wind 6 to 14 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 81. East southeast wind 6 to 8 mph becoming north in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. North wind 5 to 10 mph becoming west southwest after midnight.
Thursday
Sunny, with a high near 87. West southwest wind 5 to 9 mph becoming east northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 59. Light and variable wind becoming west around 6 mph after midnight.
Friday
Mostly sunny, with a high near 86. West northwest wind around 6 mph becoming northeast in the morning.
Friday Night
Mostly cloudy, with a low around 61.
Saturday
A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 86. Chance of precipitation is 20%.
Saturday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Monday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Powell WY
 44.87°N 108.79°W (Elev. 5049 ft)
Last Update:
2:03 pm MDT Aug 18, 2026
Forecast Valid:
2pm MDT Aug 18, 2026-6pm MDT Aug 24, 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