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Current conditions at
ROCKY BOY (RCBM8)
Lat: 48.25529°NLon: 109.78592°WElev: 3789.0ft.NA
-9°F
-23°C
| Humidity | 69% |
| Wind Speed | ENE 1 MPH |
| Barometer | NA |
| Dewpoint | -16°F (-27°C) |
| Visibility | NA |
| Last update | 23 Jan 06:18 PM MST |
Extended Forecast for
Big Sandy MT
Tonight

Low: -1 °F⇑
Increasing
CloudsSaturday

High: 17 °F
Chance Snow
Saturday Night

Low: -10 °F
Chance Snow
Sunday

High: 15 °F
Sunny
Sunday Night

Low: 6 °F
Mostly Clear
Monday

High: 34 °F
Mostly Sunny
Monday Night

Low: 14 °F
Mostly Cloudy
Tuesday

High: 37 °F
Mostly Sunny
Tuesday Night

Low: 17 °F
Partly Cloudy
Detailed Forecast
Tonight
Increasing clouds, with a temperature rising to around 4 by 5am. Wind chill values as low as -15. Calm wind becoming south around 6 mph.
Saturday
A 40 percent chance of snow, mainly between 2pm and 4pm. Mostly cloudy, with a high near 17. Wind chill values as low as zero. Light and variable wind becoming north northwest 5 to 10 mph in the morning. New snow accumulation of less than a half inch possible.
Saturday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around -10. North wind 5 to 9 mph becoming light after midnight. Little or no snow accumulation expected.
Sunday
Sunny, with a high near 15. Wind chill values as low as -10. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 6. South southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 34. Southwest wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 14. West northwest wind around 6 mph becoming light and variable in the evening.
Tuesday
Mostly sunny, with a high near 37. West wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 40.
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ABOUT THIS FORECAST
Point Forecast:
Big Sandy MT
48.18°N 110.11°W (Elev. 2759 ft)
48.18°N 110.11°W (Elev. 2759 ft)
3:42 pm MST Jan 23, 2026
7pm MST Jan 23, 2026-6pm MST Jan 30, 2026


