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

26°F

-3°C

Humidity 72%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Last update 09 Apr 12:18 AM MDT
Extended Forecast for

4 Miles ESE Big Sandy MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 28. East southeast wind around 10 mph becoming north northeast.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 51. North wind 5 to 10 mph becoming light north northwest in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. North wind 5 to 9 mph becoming east southeast after midnight.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 65. Southeast wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. East southeast wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after noon. Partly sunny, with a high near 72. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 72 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 42. Northwest wind around 7 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 54. North northwest wind 6 to 10 mph.

    High: 54 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 28. East southeast wind around 10 mph becoming north northeast.
Thursday
Mostly sunny, with a high near 51. North wind 5 to 10 mph becoming light north northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 33. North wind 5 to 9 mph becoming east southeast after midnight.
Friday
Mostly sunny, with a high near 65. Southeast wind 8 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 42. East southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Saturday
A 30 percent chance of showers after noon. Partly sunny, with a high near 72. Light and variable wind becoming west around 6 mph in the afternoon.
Saturday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 42. Northwest wind around 7 mph. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 54. North northwest wind 6 to 10 mph.
Sunday Night
Rain. Mostly cloudy, with a low around 36.
Monday
Rain before 9am, then rain, possibly mixed with snow between 9am and 3pm, then rain likely after 3pm. Mostly cloudy, with a high near 45.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
A slight chance of rain. Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Big Sandy MT
 48.16°N 110.04°W (Elev. 2825 ft)
Last Update:
10:36 pm MDT Apr 8, 2026
Forecast Valid:
12am MDT Apr 9, 2026-6pm MDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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