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

40°F

4°C

Humidity 67%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 15 May 09:18 PM MDT
Extended Forecast for

Box Elder MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. South wind 5 to 8 mph.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 60. Southwest wind 8 to 11 mph.

    High: 60 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly between 4am and 5am. Cloudy, with a low around 34. South southwest wind 7 to 9 mph. Chance of precipitation is 60%.

    Low: 34 °F

    Rain Likely

  • Sunday

    Sunday: Rain. High near 46. West northwest wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    High: 46 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before midnight. Cloudy, with a low around 29. North wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

    Low: 29 °F

    Rain Likely
    then Slight
    Chance Rain

  • Monday

    Monday: Mostly cloudy, with a high near 52. North wind 3 to 6 mph.

    High: 52 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Northeast wind 5 to 7 mph becoming light and variable in the evening.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. South wind 5 to 8 mph.
Saturday
A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 60. Southwest wind 8 to 11 mph.
Saturday Night
Rain likely, mainly between 4am and 5am. Cloudy, with a low around 34. South southwest wind 7 to 9 mph. Chance of precipitation is 60%.
Sunday
Rain. High near 46. West northwest wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Sunday Night
Rain likely, mainly before midnight. Cloudy, with a low around 29. North wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Monday
Mostly cloudy, with a high near 52. North wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 29. Northeast wind 5 to 7 mph becoming light and variable in the evening.
Tuesday
Mostly sunny, with a high near 62. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Friday
A slight chance of rain and thunderstorms. Partly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Box Elder MT
 48.33°N 110.01°W (Elev. 2661 ft)
Last Update:
10:07 pm MDT May 15, 2026
Forecast Valid:
10pm MDT May 15, 2026-6pm MDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation