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 57%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 20 Apr 06:18 AM MDT
Extended Forecast for

4 Miles ESE Big Sandy MT

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 73. South wind around 5 mph becoming light and variable.

    High: 73 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. West southwest wind around 7 mph becoming southeast in the evening.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. South wind 3 to 5 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. East southeast wind 7 to 11 mph.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers after noon. Partly sunny, with a high near 74. Southeast wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain before 3am, then rain and snow. Low around 32. Breezy, with a north northwest wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Breezy.
    Showers then
    Rain/Snow

  • Thursday

    Thursday: Rain and snow likely before 9am, then snow likely between 9am and 3pm, then rain and snow likely after 3pm. Mostly cloudy, with a high near 41. Breezy, with a northwest wind 21 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 41 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 26. North northwest wind 13 to 20 mph, with gusts as high as 31 mph.

    Low: 26 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: A chance of snow. Partly sunny, with a high near 38.

    High: 38 °F

    Chance Snow

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 73. South wind around 5 mph becoming light and variable.
Tonight
Partly cloudy, with a low around 45. West southwest wind around 7 mph becoming southeast in the evening.
Tuesday
Mostly sunny, with a high near 80. South wind 3 to 5 mph.
Tuesday Night
Mostly cloudy, with a low around 54. East southeast wind 7 to 11 mph.
Wednesday
A 50 percent chance of showers after noon. Partly sunny, with a high near 74. Southeast wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Rain before 3am, then rain and snow. Low around 32. Breezy, with a north northwest wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Rain and snow likely before 9am, then snow likely between 9am and 3pm, then rain and snow likely after 3pm. Mostly cloudy, with a high near 41. Breezy, with a northwest wind 21 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 26. North northwest wind 13 to 20 mph, with gusts as high as 31 mph.
Friday
A chance of snow. Partly sunny, with a high near 38.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
A slight chance of snow. Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 45.
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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:
4:21 am MDT Apr 20, 2026
Forecast Valid:
7am MDT Apr 20, 2026-6pm MDT Apr 26, 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