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 46°F 2025-06-21T06:30:00 
Today 2025-06-21, Chance Rain and Breezy. A 50 percent chance of rain, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 61. Breezy, with a west southwest wind 18 to 24 mph, with gusts as high as 38 mph.Tonight 2025-06-21, Chance Rain then Rain Likely. Rain likely, mainly after 4am. Increasing clouds, with a low around 42. West wind 16 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Sunday 2025-06-22, Showers. Rain before 11am, then showers between 11am and noon, then showers and possibly a thunderstorm after noon. High near 50. Northwest wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.Sunday Night 2025-06-22, Chance Showers then Partly Cloudy. A 40 percent chance of showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind around 10 mph becoming south southwest after midnight.
Monday 2025-06-23, Slight Chance Showers then Chance Showers. A 50 percent chance of showers, mainly after noon. Mostly sunny, with a high near 68. South southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 43. West northwest wind 5 to 9 mph becoming east northeast in the evening.
Tuesday 2025-06-24, Sunny. Sunny, with a high near 76. South wind around 6 mph.- Tuesday Night 2025-06-24, Mostly Clear. Mostly clear, with a low around 49. East northeast wind around 8 mph becoming south southwest after midnight.
- Wednesday 2025-06-25, Sunny. Sunny, with a high near 81.
Wednesday Night 2025-06-25, Partly Cloudy. Partly cloudy, with a low around 52.Thursday 2025-06-26, Mostly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Thursday Night 2025-06-26, Slight Chance T-storms then Mostly Cloudy. A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 52.