Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that 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

65°F

18°C

Humidity 50%
Wind Speed W 4 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 20 Aug 05:40 AM MDT
Extended Forecast for

22 Miles N Powderville MT

  • Today

    Today: Patchy smoke before 3pm. Sunny and hot, with a high near 91. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 91 °F

    Patchy Smoke

  • Tonight

    Tonight: Mostly clear, with a low around 61. North wind around 5 mph becoming calm  after midnight.

    Low: 61 °F

    Mostly Clear

  • Friday

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

    High: 92 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. North northeast wind 6 to 10 mph becoming east after midnight.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 91. Southeast wind 6 to 14 mph.

    High: 91 °F

    Hot

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. Southeast wind 11 to 16 mph.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 96. Southeast wind around 8 mph becoming west in the afternoon.

    High: 96 °F

    Hot

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 64. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 64 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

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

    High: 90 °F

    Hot

Detailed Forecast

Today
Patchy smoke before 3pm. Sunny and hot, with a high near 91. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 61. North wind around 5 mph becoming calm after midnight.
Friday
Mostly sunny and hot, with a high near 92. Calm wind becoming north northeast 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 62. North northeast wind 6 to 10 mph becoming east after midnight.
Saturday
Mostly sunny and hot, with a high near 91. Southeast wind 6 to 14 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Southeast wind 11 to 16 mph.
Sunday
Mostly sunny and hot, with a high near 96. Southeast wind around 8 mph becoming west in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 64. West wind 5 to 7 mph becoming calm after midnight.
Monday
Sunny and hot, with a high near 90. Light west northwest wind becoming northwest 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 59. North northwest wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 59. North northeast wind 5 to 7 mph becoming calm after midnight.
Wednesday
Mostly sunny and hot, with a high near 90. Calm wind becoming southeast 5 to 7 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles N Powderville MT
 46.08°N 105.13°W (Elev. 2700 ft)
3:52 am MDT Aug 20, 2026
6am MDT Aug 20, 2026-6pm MDT Aug 26, 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