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

33°F

1°C

Humidity 97%
Wind Speed W 10 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 17 May 08:18 AM MDT
Extended Forecast for

Rocky Boy MT

  • Today

    Today: Rain and snow likely before 10am, then snow. High near 41. West wind 11 to 15 mph becoming north in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow
    Likely then
    Snow

  • Tonight

    Tonight: A chance of rain and snow before 1am, then a slight chance of snow after 3am. Cloudy, with a low around 28. North wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 28 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 50. North wind around 7 mph.

    High: 50 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. North northeast wind around 6 mph becoming light and variable.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. South southeast wind 5 to 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 62. South southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 62 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Rain and snow likely before 10am, then snow. High near 41. West wind 11 to 15 mph becoming north in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of rain and snow before 1am, then a slight chance of snow after 3am. Cloudy, with a low around 28. North wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday
Mostly cloudy, with a high near 50. North wind around 7 mph.
Monday Night
Mostly clear, with a low around 29. North northeast wind around 6 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 62. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 40. South southeast wind 5 to 7 mph.
Wednesday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 62. South southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 40. North northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 45.
Friday
A chance of rain and thunderstorms. Partly sunny, with a high near 66.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rocky Boy MT
 48.26°N 109.78°W (Elev. 3789 ft)
Last Update:
3:31 am MDT May 17, 2026
Forecast Valid:
8am MDT May 17, 2026-6pm MDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation