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 55°F 2025-08-22T01:30:00 
Overnight 2025-08-22, Slight Chance Showers. A 20 percent chance of showers after 3am. Partly cloudy, with a low around 55. North northeast wind around 9 mph.
Friday 2025-08-22, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 77. Northeast wind 8 to 13 mph, with gusts as high as 21 mph.
Friday Night 2025-08-22, Mostly Clear. Mostly clear, with a low around 48. Northeast wind 8 to 13 mph becoming light east after midnight. Winds could gust as high as 21 mph.
Saturday 2025-08-23, Sunny. Sunny, with a high near 83. Calm wind becoming northeast 5 to 9 mph in the afternoon.- Saturday Night 2025-08-23, Mostly Clear. Mostly clear, with a low around 50. Northeast wind 8 to 13 mph becoming light east northeast after midnight. Winds could gust as high as 21 mph.
Sunday 2025-08-24, Mostly Sunny. Mostly sunny, with a high near 85. Calm wind becoming east northeast 5 to 8 mph in the afternoon.
Sunday Night 2025-08-24, Partly Cloudy. Partly cloudy, with a low around 52. East northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.- Monday 2025-08-25, Mostly Sunny. Mostly sunny, with a high near 85. Calm wind becoming northeast 5 to 9 mph in the afternoon.
- Monday Night 2025-08-25, Partly Cloudy. Partly cloudy, with a low around 52.
- Tuesday 2025-08-26, Mostly Sunny. Mostly sunny, with a high near 87.
- Tuesday Night 2025-08-26, Partly Cloudy. Partly cloudy, with a low around 55.
- Wednesday 2025-08-27, Mostly Sunny. Mostly sunny, with a high near 87.
- Wednesday Night 2025-08-27, Partly Cloudy. Partly cloudy, with a low around 56.
- Thursday 2025-08-28, Mostly Sunny. Mostly sunny, with a high near 86.