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: Overcast 57°F 2025-08-14T08:15:00 
Today 2025-08-14, Decreasing Clouds. Cloudy, then gradually becoming mostly sunny, with a high near 81. North wind 5 to 11 mph, with gusts as high as 20 mph.
Tonight 2025-08-14, Partly Cloudy. Partly cloudy, with a low around 53. Northeast wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Friday 2025-08-15, Mostly Sunny. Mostly sunny, with a high near 86. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Friday Night 2025-08-15, Mostly Clear. Mostly clear, with a low around 54. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Saturday 2025-08-16, Sunny. Sunny, with a high near 90. Light southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night 2025-08-16, Mostly Cloudy. Mostly cloudy, with a low around 57. West northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.- Sunday 2025-08-17, Mostly Sunny. Mostly sunny, with a high near 85. Calm wind becoming north 5 to 7 mph in the afternoon.
Sunday Night 2025-08-17, Slight Chance T-storms then Mostly Cloudy. A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. West southwest wind 5 to 8 mph becoming light and variable after midnight.
- Monday 2025-08-18, Sunny. Sunny, with a high near 90.
- Monday Night 2025-08-18, Mostly Clear. Mostly clear, with a low around 57.
- Tuesday 2025-08-19, Sunny. Sunny, with a high near 92.
- Tuesday Night 2025-08-19, Mostly Clear. Mostly clear, with a low around 58.
- Wednesday 2025-08-20, Sunny. Sunny, with a high near 91.