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

ROCKY BOY (RCBM8)

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

NA

64°F

18°C

Humidity 28%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 20 Apr 11:18 AM MDT
Extended Forecast for

4 Miles NW Rocky Boy MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 72. West southwest wind 5 to 7 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. West southwest wind around 7 mph becoming southeast in the evening.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Southwest wind 3 to 6 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. East southeast wind 6 to 11 mph.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers after noon. Partly sunny, with a high near 74. Southeast wind 6 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain before 3am, then rain and snow. Low around 32. Breezy, with a north northwest wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 32 °F

    Breezy.
    Showers then
    Rain/Snow

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 41. Breezy, with a northwest wind 22 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 41 °F

    Snow Likely
    and Breezy

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 25. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 31 mph.

    Low: 25 °F

    Chance Snow
    and Blustery

  • Friday

    Friday: A chance of snow. Partly sunny, with a high near 39.

    High: 39 °F

    Chance Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 72. West southwest wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 47. West southwest wind around 7 mph becoming southeast in the evening.
Tuesday
Mostly sunny, with a high near 80. Southwest wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 54. East southeast wind 6 to 11 mph.
Wednesday
A 40 percent chance of showers after noon. Partly sunny, with a high near 74. Southeast wind 6 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Rain before 3am, then rain and snow. Low around 32. Breezy, with a north northwest wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday
Snow likely. Mostly cloudy, with a high near 41. Breezy, with a northwest wind 22 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 25. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 31 mph.
Friday
A chance of snow. Partly sunny, with a high near 39.
Friday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 22.
Saturday
A slight chance of snow. Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Rocky Boy MT
 48.3°N 109.88°W (Elev. 3202 ft)
Last Update:
9:31 am MDT Apr 20, 2026
Forecast Valid:
12pm MDT Apr 20, 2026-6pm MDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation