| NWS Forecast for: 20 Miles S Big Sky MT Issued by: National Weather Service Great Falls, MT Last Update: 7:32 am MDT Oct 9, 2026 |  |
Today: Sunny, with a high near 57. Breezy, with a south southwest wind 17 to 23 mph, with gusts as high as 40 mph. Tonight: Increasing clouds, with a low around 41. South southwest wind 17 to 20 mph, with gusts as high as 38 mph. Saturday: Rain and possibly a thunderstorm before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Temperature falling to around 41 by 4pm. Breezy, with a south southwest wind 15 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. Saturday Night: Rain showers before 9pm, then snow. Some thunder is also possible. Low around 32. South wind 10 to 13 mph becoming east northeast after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible. Sunday: Snow. High near 35. East northeast wind 6 to 13 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible. Sunday Night: Snow. Low around 31. North northeast wind 6 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible. Columbus Day: Rain and snow, mainly before noon. High near 39. Northeast wind 5 to 9 mph becoming light and variable. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible. Monday Night: A chance of rain and snow before 3am, then a chance of snow. Mostly cloudy, with a low around 32. South wind around 6 mph. Tuesday: A chance of snow before 3pm, then a chance of rain. Mostly cloudy, with a high near 40. Tuesday Night: A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 30. Wednesday: A chance of snow. Partly sunny, with a high near 37. Wednesday Night: A chance of snow. Mostly cloudy, with a low around 28. Thursday: A chance of snow. Partly sunny, with a high near 35. | |
| 20 Miles S Big Sky MT 44.98°N 111.27°W (Elev. 8947 ft) | |
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