| NWS Forecast for: Big Sky MT Issued by: National Weather Service Great Falls, MT Last Update: 12:31 pm MDT Apr 18, 2026 | |
| This Afternoon: Sunny, with a high near 50. Southwest wind 3 to 6 mph. Tonight: Mostly clear, with a low around 23. South southwest wind around 5 mph becoming calm in the evening. Sunday: Sunny, with a high near 61. Light and variable wind. Sunday Night: Partly cloudy, with a low around 34. Calm wind. Monday: Sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon. Monday Night: Mostly clear, with a low around 39. Light south wind. Tuesday: Mostly sunny, with a high near 70. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 23 mph. Tuesday Night: Partly cloudy, with a low around 42. South southeast wind 3 to 8 mph. Winds could gust as high as 23 mph. Wednesday: Rain likely, mainly after noon. Partly sunny, with a high near 59. Wednesday Night: Rain before 9pm, then rain and snow. Cloudy, with a low around 29. Thursday: Snow. Mostly cloudy, with a high near 42. Thursday Night: A chance of snow. Mostly cloudy, with a low around 20. Friday: A chance of snow. Partly sunny, with a high near 44. | |
| Big Sky MT 45.25°N 111.32°W (Elev. 6398 ft) | |
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