I-15 weather conditions near Great Falls, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Clear 79°F 2025-06-18T20:30:00
• Tonight 2025-06-18, Partly Cloudy. Partly cloudy, with a low around 48. West wind 6 to 10 mph becoming south southwest after midnight.
• Juneteenth 2025-06-19, Mostly Sunny then Slight Chance Showers. A 20 percent chance of showers after 5pm. Sunny, with a high near 84. Southwest wind 6 to 14 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
• Thursday Night 2025-06-19, Showers Likely. Showers and thunderstorms likely, mainly before 8pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. East northeast wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
• Friday 2025-06-20, Chance Rain then Showers. A chance of rain, then showers and possibly a thunderstorm after noon. High near 71. North wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
• Friday Night 2025-06-20, Showers. Showers and possibly a thunderstorm. Low around 46. North northwest wind 10 to 14 mph becoming west southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
• Saturday 2025-06-21, Showers Likely. Rain likely before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 61. West southwest wind 13 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.
• Saturday Night 2025-06-21, Rain Likely. Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. West northwest wind 16 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
• Sunday 2025-06-22, Showers. Rain before noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 54. West wind 15 to 18 mph, with gusts as high as 26 mph.
• Sunday Night 2025-06-22, Partly Cloudy. Partly cloudy, with a low around 35.
• Monday 2025-06-23, Mostly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66.
• Monday Night 2025-06-23, Slight Chance Showers then Mostly Clear. A slight chance of showers. Partly cloudy, with a low around 41.
• Tuesday 2025-06-24, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72.
• Tuesday Night 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 45.
• Wednesday 2025-06-25, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79.