| NWS Forecast for: 20 Miles S Big Sky MT Issued by: National Weather Service Great Falls, MT Last Update: 4:47 am MDT Oct 12, 2026 | |
| Columbus Day: Snow likely, mainly after 1pm. Mostly cloudy, with a high near 31. South southwest wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible. Tonight: Mostly cloudy, with a low around 27. Light and variable wind becoming north 5 to 7 mph after midnight. Tuesday: Partly sunny, with a high near 34. North wind 6 to 8 mph. Tuesday Night: Partly cloudy, with a low around 22. North wind 6 to 9 mph. Wednesday: Sunny, with a high near 39. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon. Wednesday Night: Mostly clear, with a low around 26. Northwest wind 6 to 11 mph, with gusts as high as 18 mph. Thursday: Sunny, with a high near 41. North wind 3 to 8 mph. Thursday Night: Mostly clear, with a low around 28. Calm wind becoming south around 6 mph after midnight. Friday: Sunny, with a high near 48. Friday Night: Clear, with a low around 30. Saturday: Sunny, with a high near 47. Saturday Night: Mostly clear, with a low around 32. Sunday: Sunny, with a high near 47. | |
| 20 Miles S Big Sky MT 44.98°N 111.27°W (Elev. 8947 ft) | |
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