Air Quality Concerns; Fire Weather; Extreme Heat; Severe Thunderstorms and Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and flash flooding possible for the Southeast through today. Strong to severe thunderstorms for the Southern Plains with severe wind gusts and large hail possible. Read More >

Current conditions at

Miles City, Frank Wiley Field Airport (KMLS)

Lat: 46.42806°NLon: 105.88639°WElev: 2628.0ft.

Clear

93°F

34°C

Humidity 21%
Wind Speed ESE 14 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 04 Aug 03:53 PM MDT
Extended Forecast for

Forsyth MT

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 3am. Some of the storms could be severe.  Mostly cloudy, with a low around 64. East wind 6 to 13 mph.

    Low: 64 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before noon.  Mostly sunny, with a high near 86. Southeast wind 6 to 10 mph becoming northwest in the afternoon.

    High: 86 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 93. Calm wind becoming south around 6 mph in the afternoon.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. North wind around 6 mph becoming east after midnight.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 90. North northwest wind 5 to 7 mph.

    High: 90 °F

    Hot

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 60. North wind around 7 mph.  Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 77. West northwest wind 6 to 11 mph.  Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 56. West wind 6 to 10 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly before 3am. Some of the storms could be severe. Mostly cloudy, with a low around 64. East wind 6 to 13 mph.
Tuesday
A 20 percent chance of showers and thunderstorms before noon. Mostly sunny, with a high near 86. Southeast wind 6 to 10 mph becoming northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Northwest wind 5 to 9 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 93. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. North wind around 6 mph becoming east after midnight.
Thursday
Sunny and hot, with a high near 90. North northwest wind 5 to 7 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. North wind around 7 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 77. West northwest wind 6 to 11 mph. Chance of precipitation is 40%.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56. West wind 6 to 10 mph.
Saturday
Mostly sunny, with a high near 81. West wind 6 to 11 mph.
Saturday Night
Partly cloudy, with a low around 58. Northwest wind 5 to 9 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 84. Calm wind becoming northwest 5 to 8 mph in the morning.
Sunday Night
Partly cloudy, with a low around 58. North northwest wind 3 to 8 mph.
Monday
Sunny, with a high near 82. West northwest wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Forsyth MT
 46.27°N 106.69°W (Elev. 2500 ft)
1:53 pm MDT Aug 4, 2025
4pm MDT Aug 4, 2025-6pm MDT Aug 11, 2025
 
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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