Tropical Depression Nine Forms; Heavy Rainfall in the Southwest and Southeast this Weekend

Tropical Depression Nine has formed and will continue to slowly move to the north-northwest in the coming days. As the storm passes close to the east coast of Florida, tropical storm conditions are possible Sunday through Monday. Tropical Storm Watches have been issued. Significant uncertainty remains in the track and intensity, but chances for impacts to the Southeast are increasing. Read More >

Current conditions at

ROCKY BOY (RCBM8)

Lat: 48.25529°NLon: 109.78592°WElev: 3789.0ft.

NA

58°F

14°C

Humidity 43%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 28 Sep 01:18 AM MDT
Extended Forecast for

4 Miles NW Rocky Boy MT

  • Overnight

    Overnight: Mostly clear, with a low around 52. South southeast wind 3 to 6 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy smoke between 9am and noon. Sunny, with a high near 78. Light and variable wind becoming north 5 to 8 mph in the morning.

    High: 78 °F

    Patchy Smoke
    then Sunny

  • Sunday Night

    Sunday Night: Patchy smoke between 10pm and 5am. Mostly clear, with a low around 54. East southeast wind 7 to 11 mph.

    Low: 54 °F

    Patchy Smoke

  • Monday

    Monday: Sunny, with a high near 84. Southeast wind 6 to 10 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. Southeast wind 7 to 13 mph becoming south southwest after midnight. Winds could gust as high as 22 mph.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. West southwest wind 5 to 9 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a chance of rain after midnight.  Mostly cloudy, with a low around 51. Southwest wind around 7 mph.  Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. South southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 52. South southeast wind 3 to 6 mph.
Sunday
Patchy smoke between 9am and noon. Sunny, with a high near 78. Light and variable wind becoming north 5 to 8 mph in the morning.
Sunday Night
Patchy smoke between 10pm and 5am. Mostly clear, with a low around 54. East southeast wind 7 to 11 mph.
Monday
Sunny, with a high near 84. Southeast wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 57. Southeast wind 7 to 13 mph becoming south southwest after midnight. Winds could gust as high as 22 mph.
Tuesday
Partly sunny, with a high near 78. West southwest wind 5 to 9 mph.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 51. Southwest wind around 7 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 76. South southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
Partly sunny, with a high near 72.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 46.
Friday
A slight chance of rain. Partly sunny, with a high near 64.
Friday Night
A chance of rain. Mostly cloudy, with a low around 42.
Saturday
A slight chance of rain. Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Rocky Boy MT
 48.3°N 109.88°W (Elev. 3202 ft)
10:34 pm MDT Sep 27, 2025
2am MDT Sep 28, 2025-6pm MDT Oct 4, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database