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

42°F

6°C

Humidity 40%
Wind Speed ESE 4 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 18 Apr 10:18 PM MDT
Extended Forecast for

4 Miles ESE Big Sandy MT

  • Tonight

    Tonight: Partly cloudy, with a low around 31. East southeast wind 6 to 8 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66. East southeast wind around 7 mph becoming south southwest in the afternoon.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. South southwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. West southwest wind 5 to 8 mph becoming south southeast in the evening.

    Low: 45 °F

    Mostly Clear

  • Tuesday

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

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51. East wind 7 to 10 mph.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain after noon. Partly sunny, with a high near 72. Southeast wind 8 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 72 °F

    Partly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain before 3am, then rain and snow. Cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Breezy. Rain
    then
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. East southeast wind 6 to 8 mph.
Sunday
Sunny, with a high near 66. East southeast wind around 7 mph becoming south southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 39. South southwest wind 5 to 7 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 72. Light and variable wind.
Monday Night
Mostly clear, with a low around 45. West southwest wind 5 to 8 mph becoming south southeast in the evening.
Tuesday
Mostly sunny, with a high near 80. South wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 51. East wind 7 to 10 mph.
Wednesday
A chance of rain after noon. Partly sunny, with a high near 72. Southeast wind 8 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Rain before 3am, then rain and snow. Cloudy, with a low around 33. Breezy.
Thursday
Rain and snow likely, becoming all snow after 9am. Mostly cloudy, with a high near 44. Breezy.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 26.
Friday
A chance of snow. Partly sunny, with a high near 45.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
Partly sunny, with a high near 48.
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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:
10:42 pm MDT Apr 18, 2026
Forecast Valid:
11pm MDT Apr 18, 2026-6pm MDT Apr 25, 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