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

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

KNOWLTON (KTFM8)

Lat: 46.30739°NLon: 105.02978°WElev: 3320.0ft.

NA

87°F

31°C

Humidity 22%
Wind Speed ESE 5 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index84°F (29°C)
Last update 25 Jul 12:40 AM MDT
Extended Forecast for

10 Miles WSW Ismay MT

Extreme Heat Warning July 25, 12:48am until July 26, 09:00pm
Red Flag Warning July 25, 12:00pm until July 26, 12:00am
Click here for hazard details and duration
Extreme Heat Warning
Red Flag Warning
  •  
    Extreme Heat Warning July 25, 12:48am until July 26, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Overnight

    Low: 68 °F

    Patchy Smoke

  • Saturday

    Saturday: Patchy smoke. Mostly sunny and hot, with a high near 104. South southwest wind around 6 mph becoming east southeast in the afternoon.

    High: 104 °F

    Patchy Smoke

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 71. South southeast wind 7 to 14 mph becoming west in the evening.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 99. West wind 9 to 13 mph becoming north in the afternoon.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 68. North wind 7 to 9 mph becoming southeast after midnight.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Monday

    Monday: Sunny and hot, with a high near 99. Southeast wind 8 to 11 mph becoming north northwest in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. North northwest wind 7 to 9 mph becoming east after midnight.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Southeast wind 7 to 11 mph.

    High: 99 °F

    Hot

Detailed Forecast

Overnight
Patchy smoke. Mostly clear, with a low around 68. South southwest wind around 7 mph.
Saturday
Patchy smoke. Mostly sunny and hot, with a high near 104. South southwest wind around 6 mph becoming east southeast in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 71. South southeast wind 7 to 14 mph becoming west in the evening.
Sunday
Sunny and hot, with a high near 99. West wind 9 to 13 mph becoming north in the afternoon.
Sunday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 68. North wind 7 to 9 mph becoming southeast after midnight.
Monday
Sunny and hot, with a high near 99. Southeast wind 8 to 11 mph becoming north northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 68. North northwest wind 7 to 9 mph becoming east after midnight.
Tuesday
Sunny and hot, with a high near 99. Southeast wind 7 to 11 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. East southeast wind 9 to 13 mph. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 100. Southeast wind 7 to 9 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. South southeast wind 6 to 9 mph.
Thursday
Sunny and hot, with a high near 99. South southeast wind 6 to 9 mph becoming northeast in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. Northeast wind 7 to 10 mph becoming southeast after midnight.
Friday
Sunny and hot, with a high near 99. South southeast wind 7 to 10 mph becoming east in the afternoon.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles WSW Ismay MT
 46.43°N 104.98°W (Elev. 3097 ft)
Last Update:
12:32 am MDT Jul 25, 2026
Forecast Valid:
12am MDT Jul 25, 2026-6pm MDT Jul 31, 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