I-15 weather conditions near Helena, Montana
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Tonight 2025-12-11, Rain/Snow then Snow. Rain, possibly mixed with snow, becoming all snow after 10pm. Low around 18. North northwest wind 7 to 9 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.
Friday 2025-12-12, Snow then Chance Rain/Snow. Snow before noon, then a chance of rain and snow. High near 34. North wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night 2025-12-12, Mostly Cloudy then Slight Chance Rain/Snow. A slight chance of rain and snow between 3am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 23. Southeast wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 20%.
Saturday 2025-12-13, Mostly Cloudy. Mostly cloudy, with a high near 42. North northwest wind 5 to 8 mph becoming light and variable.
Saturday Night 2025-12-13, Partly Cloudy. Partly cloudy, with a low around 28. South southwest wind 7 to 9 mph.
Sunday 2025-12-14, Mostly Sunny. Mostly sunny, with a high near 49. South wind 6 to 9 mph.
Sunday Night 2025-12-14, Mostly Cloudy. Mostly cloudy, with a low around 31. South southwest wind 7 to 10 mph.- Monday 2025-12-15, Partly Sunny. Partly sunny, with a high near 51. South wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night 2025-12-15, Chance Rain. A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 36.
Tuesday 2025-12-16, Chance Rain. A chance of rain. Partly sunny, with a high near 50.
Tuesday Night 2025-12-16, Rain/Snow Likely. Rain and snow likely. Mostly cloudy, with a low around 30.Wednesday 2025-12-17, Chance Rain/Snow then Slight Chance Snow. A chance of rain and snow. Partly sunny, with a high near 41.
Wednesday Night 2025-12-17, Slight Chance Snow. A slight chance of snow. Partly cloudy, with a low around 25.Thursday 2025-12-18, Chance Snow then Chance Rain/Snow. A chance of rain and snow. Partly sunny, with a high near 43.