I-15 weather conditions near Helena, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Tonight 2025-10-13, Slight Chance Snow and Patchy Fog. A 20 percent chance of snow. Patchy fog after 1am. Otherwise, cloudy, with a low around 24. Northwest wind around 6 mph becoming calm after midnight.
• Tuesday 2025-10-14, Chance Snow and Patchy Fog then Slight Chance Rain. A chance of snow before noon, then a slight chance of rain between noon and 1pm. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 42. Calm wind becoming north northwest 5 to 9 mph in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.
• Tuesday Night 2025-10-14, Chance Rain/Snow. A chance of rain and snow before midnight, then a chance of rain between midnight and 3am, then a chance of rain and snow after 3am. Mostly cloudy, with a low around 28. North northwest wind 5 to 10 mph becoming light northwest. Chance of precipitation is 30%. Little or no snow accumulation expected.
• Wednesday 2025-10-15, Rain/Snow Likely then Chance Rain. Rain and snow likely, becoming all rain after 9am. Mostly cloudy, with a high near 42. North northwest wind 3 to 6 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
• Wednesday Night 2025-10-15, Rain Likely. Rain likely. Mostly cloudy, with a low around 32. Light west wind. Chance of precipitation is 60%.
• Thursday 2025-10-16, Chance Rain then Slight Chance Rain. A 50 percent chance of rain, mainly before noon. Partly sunny, with a high near 52. West wind 3 to 6 mph.
• Thursday Night 2025-10-16, Slight Chance Rain then Partly Cloudy. A 20 percent chance of rain before midnight. Partly cloudy, with a low around 32. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.
• Friday 2025-10-17, Chance Rain. A chance of rain, mainly after noon. Partly sunny, with a high near 54. West southwest wind 8 to 16 mph, with gusts as high as 26 mph.
• Friday Night 2025-10-17, Chance Rain. A chance of rain. Mostly cloudy, with a low around 31.
• Saturday 2025-10-18, Mostly Sunny. Mostly sunny, with a high near 56.
• Saturday Night 2025-10-18, Partly Cloudy then Slight Chance Rain. A slight chance of rain. Partly cloudy, with a low around 35.
• Sunday 2025-10-19, Chance Rain. A chance of rain. Partly sunny, with a high near 64.
• Sunday Night 2025-10-19, Chance Rain. A chance of rain. Mostly cloudy, with a low around 32.
• Monday 2025-10-20, Chance Rain. A chance of rain. Mostly cloudy, with a high near 48.