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

Powell Municipal Airport (KPOY)

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

Clear

68°F

20°C

Humidity 45%
Wind Speed W 4 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 46°F (8°C)
Visibility NA
Last update 26 Jul 01:10 AM MDT
Extended Forecast for

3 Miles SSW Ralston WY

Heat Advisory July 26, 01:31am until July 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 26, 01:31am until July 26, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Overnight

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 94. Southwest wind around 6 mph becoming north northeast in the afternoon.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms, mainly between 8pm and 9pm.  Partly cloudy, with a low around 64. South wind 5 to 7 mph becoming north northwest in the evening.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms between 1pm and 4pm.  Partly sunny, with a high near 91. South southwest wind 5 to 11 mph becoming north in the morning.  Chance of precipitation is 20%.

    High: 91 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. Southwest wind 5 to 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 95. Light and variable wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 66. Southwest wind 7 to 9 mph.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 94. Southwest wind around 6 mph becoming north northeast in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms, mainly between 8pm and 9pm. Partly cloudy, with a low around 64. South wind 5 to 7 mph becoming north northwest in the evening.
Monday
A slight chance of showers and thunderstorms between 1pm and 4pm. Partly sunny, with a high near 91. South southwest wind 5 to 11 mph becoming north in the morning. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 63. Southwest wind 5 to 7 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 95. Light and variable wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 63. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
A 10 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 62.
Thursday
Sunny, with a high near 94.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny and hot, with a high near 97.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Ralston WY
 44.73°N 108.92°W (Elev. 4747 ft)
12:31 am MDT Jul 26, 2026
1am 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