Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

KNOWLTON (KTFM8)

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

NA

58°F

14°C

Humidity 82%
Wind Speed SSW 7 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 19 Aug 02:40 AM MDT
Extended Forecast for

27 Miles N Powderville MT

  • Overnight

    Overnight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 90. Light and variable wind becoming west northwest 5 to 10 mph in the morning.

    High: 90 °F

    Hot

  • Wednesday Night

    Wednesday Night: Patchy smoke. Mostly clear, with a low around 59. West northwest wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 59 °F

    Patchy Smoke

  • Thursday

    Thursday: Patchy smoke before 9am. Sunny and hot, with a high near 92. Light and variable wind.

    High: 92 °F

    Patchy Smoke
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. North wind around 5 mph becoming light and variable  after midnight.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 92. Calm wind becoming north northeast 5 to 9 mph in the afternoon.

    High: 92 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. North northeast wind 7 to 10 mph becoming east after midnight.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 90. Southeast wind 7 to 15 mph.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. East southeast wind 10 to 16 mph.  Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Calm wind.
Wednesday
Sunny and hot, with a high near 90. Light and variable wind becoming west northwest 5 to 10 mph in the morning.
Wednesday Night
Patchy smoke. Mostly clear, with a low around 59. West northwest wind 5 to 10 mph becoming light and variable in the evening.
Thursday
Patchy smoke before 9am. Sunny and hot, with a high near 92. Light and variable wind.
Thursday Night
Mostly clear, with a low around 62. North wind around 5 mph becoming light and variable after midnight.
Friday
Sunny and hot, with a high near 92. Calm wind becoming north northeast 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 62. North northeast wind 7 to 10 mph becoming east after midnight.
Saturday
Mostly sunny and hot, with a high near 90. Southeast wind 7 to 15 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East southeast wind 10 to 16 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny and hot, with a high near 94. South southeast wind around 8 mph becoming west northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 62. West northwest wind 5 to 8 mph becoming calm after midnight.
Monday
Sunny and hot, with a high near 90. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 60. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny and hot, with a high near 92. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
27 Miles N Powderville MT
 46.15°N 105.14°W (Elev. 2651 ft)
12:32 am MDT Aug 19, 2026
3am MDT Aug 19, 2026-6pm MDT Aug 25, 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