I-90 weather conditions near Garrison, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Today 2025-11-21, Mostly Sunny. Mostly sunny, with a high near 45. Calm wind becoming west northwest 5 to 7 mph in the morning.
• Tonight 2025-11-21, Mostly Cloudy. Mostly cloudy, with a low around 23. West northwest wind around 5 mph becoming calm in the evening.
• Saturday 2025-11-22, Mostly Sunny. Mostly sunny, with a high near 48. Calm wind.
• Saturday Night 2025-11-22, Partly Cloudy. Partly cloudy, with a low around 22. Calm wind.
• Sunday 2025-11-23, Mostly Sunny. Mostly sunny, with a high near 50. Light and variable wind.
• Sunday Night 2025-11-23, Chance Rain then Chance Rain/Snow. A chance of rain after 11pm, mixing with snow after 2am. Snow level 6200 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 23. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
• Monday 2025-11-24, Snow Likely and Breezy. Snow likely, mainly before 11am. Partly sunny, with a high near 35. Breezy. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
• Monday Night 2025-11-24, Chance Snow. A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 14.
• Tuesday 2025-11-25, Slight Chance Snow. A slight chance of snow. Partly sunny, with a high near 33.
• Tuesday Night 2025-11-25, Slight Chance Snow. A slight chance of snow after 11pm. Mostly cloudy, with a low around 12.
• Wednesday 2025-11-26, Chance Snow. A chance of snow. Mostly cloudy, with a high near 32.
• Wednesday Night 2025-11-26, Chance Snow. A chance of snow. Mostly cloudy, with a low around 19.
• Thanksgiving Day 2025-11-27, Chance Rain/Snow. A chance of rain and snow. Snow level rising to 5200 feet in the afternoon. Mostly cloudy, with a high near 40.