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- This Saturday, June 27: Great Falls Disaster Response Expo - FREE and Family-Friendly Event, Great Falls College at MSU
- SCN26-50: Discontinuation of the State Forecast Product (SFP) for all NWS Central Region, Southern Region, and Western Region Offices: Effective June 29, 2026
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Current conditions at
ROCKY BOY (RCBM8)
Lat: 48.25529°NLon: 109.78592°WElev: 3789.0ft.NA
49°F
9°C
| Humidity | 93% |
| Wind Speed | SSE 2 MPH |
| Barometer | NA |
| Dewpoint | 47°F (8°C) |
| Visibility | NA |
| Last update | 25 Jun 11:18 PM MDT |
Extended Forecast for
3 Miles ESE Rocky Boy MT
Overnight

Low: 50 °F
Mostly Cloudy
Friday
High: 76 °F
Slight Chance
T-storms then
Showers
LikelyFriday Night
Low: 50 °F
Showers then
Chance
ShowersSaturday
High: 69 °F
Mostly Cloudy
then Chance
ShowersSaturday Night
Low: 46 °F
Chance
Showers then
Showers
LikelySunday

High: 60 °F
Showers
Sunday Night

Low: 43 °F
Showers
LikelyMonday

High: 57 °F
Showers
Monday Night

Low: 45 °F
Showers
Likely
Detailed Forecast
Overnight
Mostly cloudy, with a low around 50. South southeast wind 5 to 7 mph.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 76. Light and variable wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms before 3am, then a chance of showers between 3am and 4am. Low around 50. Southeast wind 5 to 9 mph becoming west southwest in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 69. West wind 6 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 46. Southwest wind 3 to 7 mph. Chance of precipitation is 70%.
Sunday
Showers, with thunderstorms also possible after 3pm. High near 60. West southwest wind 7 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 43. Southwest wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.
Monday
Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 57. West southwest wind 17 to 20 mph, with gusts as high as 36 mph.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 45.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 78.
Basemap Options
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ABOUT THIS FORECAST
Point Forecast:
3 Miles ESE Rocky Boy MT
48.24°N 109.74°W (Elev. 4193 ft)
48.24°N 109.74°W (Elev. 4193 ft)
12:06 am MDT Jun 26, 2026
12am MDT Jun 26, 2026-6pm MDT Jul 2, 2026


