I-15 weather conditions near Great Falls, Montana
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Clear 54°F 2025-10-17T11:15:00 
Today 2025-10-17, Slight Chance Showers and Breezy. A slight chance of showers between 4pm and 5pm. Partly sunny, with a high near 63. Breezy, with a west southwest wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.Tonight 2025-10-17, Rain/Snow Likely and Breezy then Slight Chance Rain/Snow. Rain and snow showers likely before 3am, then a slight chance of snow showers between 3am and 4am. Mostly cloudy, with a low around 30. Breezy, with a west wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday 2025-10-18, Mostly Sunny. Mostly sunny, with a high near 58. Southwest wind 10 to 18 mph, with gusts as high as 25 mph.Saturday Night 2025-10-18, Mostly Cloudy then Slight Chance Rain and Breezy. A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 47. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 31 mph.
Sunday 2025-10-19, Chance Rain and Breezy. A 30 percent chance of rain. Mostly cloudy, with a high near 61. Breezy, with a southwest wind 18 to 24 mph, with gusts as high as 37 mph.
Sunday Night 2025-10-19, Chance Rain. A 30 percent chance of rain, mainly after midnight. Partly cloudy, with a low around 38. West southwest wind 18 to 20 mph, with gusts as high as 33 mph.Monday 2025-10-20, Slight Chance Rain then Mostly Sunny. A 20 percent chance of rain before noon. Mostly sunny, with a high near 55. West southwest wind 15 to 17 mph, with gusts as high as 25 mph.
Monday Night 2025-10-20, Mostly Clear. Mostly clear, with a low around 33. South southwest wind around 11 mph, with gusts as high as 20 mph.
Tuesday 2025-10-21, Partly Sunny. Partly sunny, with a high near 60.
Tuesday Night 2025-10-21, Mostly Cloudy. Mostly cloudy, with a low around 34.- Wednesday 2025-10-22, Mostly Sunny. Mostly sunny, with a high near 60.
Wednesday Night 2025-10-22, Partly Cloudy. Partly cloudy, with a low around 40.- Thursday 2025-10-23, Mostly Sunny. Mostly sunny, with a high near 66.