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

43°F

6°C

Humidity 56%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 21 Apr 02:18 AM MDT
Extended Forecast for

4 Miles ESE Big Sandy MT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 49. South wind around 6 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. East wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 76. South southeast wind 6 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain before midnight, then rain, possibly mixed with snow. Some thunder is also possible. Low around 31. Blustery, with a west southwest wind 16 to 24 mph becoming northwest after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 31 °F

    Blustery.
    Showers then
    Rain/Snow

  • Thursday

    Thursday: Rain likely, possibly mixed with snow, becoming all snow after 9am. Mostly cloudy, with a high near 41. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow
    Likely and
    Breezy then
    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. Northwest wind 13 to 18 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Friday

    Friday: A chance of snow. Mostly cloudy, with a high near 38. Northwest wind 14 to 17 mph, with gusts as high as 30 mph.

    High: 38 °F

    Chance Snow

  • Friday Night

    Friday Night: A slight chance of snow. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 49. South wind around 6 mph.
Tuesday
Mostly sunny, with a high near 79. Calm wind becoming east southeast around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 54. East wind 6 to 13 mph, with gusts as high as 20 mph.
Wednesday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 76. South southeast wind 6 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Wednesday Night
Rain before midnight, then rain, possibly mixed with snow. Some thunder is also possible. Low around 31. Blustery, with a west southwest wind 16 to 24 mph becoming northwest after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday
Rain likely, possibly mixed with snow, becoming all snow after 9am. Mostly cloudy, with a high near 41. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. Northwest wind 13 to 18 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.
Friday
A chance of snow. Mostly cloudy, with a high near 38. Northwest wind 14 to 17 mph, with gusts as high as 30 mph.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 23.
Saturday
A chance of snow. Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
A slight chance of snow. Partly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
A slight chance of rain and snow. Mostly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Big Sandy MT
 48.16°N 110.04°W (Elev. 2825 ft)
Last Update:
12:31 am MDT Apr 21, 2026
Forecast Valid:
3am MDT Apr 21, 2026-6pm MDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation