I-15 weather conditions near Helena, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Tonight 2025-10-17, Chance Rain/Snow. A chance of rain and snow between midnight and 3am. Partly cloudy, with a low around 28. West wind 7 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
• Saturday 2025-10-18, Increasing Clouds. Increasing clouds, with a high near 55. West wind 6 to 9 mph becoming south in the morning.
• Saturday Night 2025-10-18, Mostly Cloudy then Slight Chance Rain. A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 36. West northwest wind 6 to 14 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.
• Sunday 2025-10-19, Rain and Breezy. Rain. High near 56. Breezy, with a south southeast wind 10 to 15 mph becoming west 20 to 25 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%.
• Sunday Night 2025-10-19, Chance Rain and Breezy. A 50 percent chance of rain. Partly cloudy, with a low around 35. Breezy, with a west wind 16 to 24 mph, with gusts as high as 40 mph.
• Monday 2025-10-20, Slight Chance Rain then Sunny. A 20 percent chance of rain before noon. Mostly sunny, with a high near 53. West wind 13 to 18 mph, with gusts as high as 28 mph.
• Monday Night 2025-10-20, Partly Cloudy. Partly cloudy, with a low around 28. South southwest wind 7 to 9 mph.
• Tuesday 2025-10-21, Partly Sunny. Partly sunny, with a high near 60. South wind 5 to 7 mph.
• Tuesday Night 2025-10-21, Mostly Cloudy. Mostly cloudy, with a low around 32.
• Wednesday 2025-10-22, Mostly Sunny. Mostly sunny, with a high near 60.
• Wednesday Night 2025-10-22, Partly Cloudy. Partly cloudy, with a low around 32.
• Thursday 2025-10-23, Mostly Sunny. Mostly sunny, with a high near 66.
• Thursday Night 2025-10-23, Partly Cloudy. Partly cloudy, with a low around 35.
• Friday 2025-10-24, Mostly Sunny. Mostly sunny, with a high near 66.