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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

ROCKY BOY (RCBM8)

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

NA

47°F

8°C

Humidity 90%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 22 Sep 11:18 PM MDT
Extended Forecast for

4 Miles NW Rocky Boy MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 53. Light south southeast wind.

    Low: 53 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Calm wind becoming west 5 to 8 mph in the morning.

    High: 77 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Light south southeast wind.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Southeast wind 5 to 10 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 30 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 83. Southeast wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. West wind 10 to 18 mph, with gusts as high as 32 mph.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 63. West wind around 21 mph, with gusts as high as 34 mph.

    High: 63 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 53. Light south southeast wind.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Calm wind becoming west 5 to 8 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 52. Light south southeast wind.
Thursday
Sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. Southeast wind 5 to 10 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 30 mph.
Friday
Mostly sunny, with a high near 83. Southeast wind 6 to 9 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 48. West wind 10 to 18 mph, with gusts as high as 32 mph.
Saturday
Mostly sunny, with a high near 63. West wind around 21 mph, with gusts as high as 34 mph.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
Partly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Rocky Boy MT
 48.3°N 109.88°W (Elev. 3202 ft)
Last Update:
4:46 pm MDT Sep 22, 2026
Forecast Valid:
12am MDT Sep 23, 2026-6pm MDT Sep 29, 2026
 
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