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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

KNOWLTON (KTFM8)

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

NA

53°F

12°C

Humidity 62%
Wind Speed SE 8 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 20 Jun 04:40 AM MDT
Extended Forecast for

Ismay MT

  • Today

    Today: Increasing clouds, with a high near 78. Southeast wind 9 to 17 mph.

    High: 78 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 54. Southeast wind 8 to 17 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 2pm, then showers likely between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before 9am. High near 70. Southeast wind around 9 mph. Chance of precipitation is 90%.

    High: 70 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 49. Southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 49 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 70. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 80%.

    High: 70 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47. West northwest wind 5 to 9 mph becoming light west.

    Low: 47 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 71. West wind 5 to 13 mph.

    High: 71 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. North northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 78. Southeast wind 9 to 17 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 54. Southeast wind 8 to 17 mph. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm before 2pm, then showers likely between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before 9am. High near 70. Southeast wind around 9 mph. Chance of precipitation is 90%.
Sunday Night
A 20 percent chance of showers before midnight. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 49. Southeast wind 5 to 8 mph becoming calm after midnight.
Monday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 70. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 80%.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47. West northwest wind 5 to 9 mph becoming light west.
Tuesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 71. West wind 5 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 46. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 75. Calm wind becoming east northeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 49. Northeast wind around 6 mph becoming southeast after midnight.
Thursday
Mostly sunny, with a high near 79. Southeast wind 5 to 9 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53. East southeast wind 7 to 9 mph.
Friday
Mostly sunny, with a high near 85. Southeast wind 6 to 13 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ismay MT
 46.5°N 104.81°W (Elev. 2572 ft)
Last Update:
2:19 am MDT Jun 20, 2026
Forecast Valid:
5am MDT Jun 20, 2026-6pm MDT Jun 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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