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
Today 2025-10-17, Partly Sunny then Slight Chance Rain. A 20 percent chance of rain after 5pm. Partly sunny, with a high near 61. South southeast wind 8 to 13 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.
Tonight 2025-10-17, Chance Rain then Slight Chance Rain/Snow. A chance of rain, possibly mixing with snow after 3am, then gradually ending. Partly cloudy, with a low around 27. West northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday 2025-10-18, Mostly Sunny. Mostly sunny, with a high near 56. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday Night 2025-10-18, Mostly Cloudy. Mostly cloudy, with a low around 36. South southeast wind 6 to 14 mph, with gusts as high as 21 mph.
Sunday 2025-10-19, Rain Likely. Rain likely, mainly after noon. Mostly cloudy, with a high near 57. South wind 8 to 13 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%.
Sunday Night 2025-10-19, Chance Rain. A 40 percent chance of rain. Mostly cloudy, with a low around 34. West wind 13 to 18 mph, with gusts as high as 36 mph.Monday 2025-10-20, Slight Chance Rain then Mostly Sunny. A 20 percent chance of rain before noon. Mostly sunny, with a high near 51. West wind 10 to 16 mph, with gusts as high as 26 mph.
Monday Night 2025-10-20, Partly Cloudy. Partly cloudy, with a low around 28. West wind 8 to 10 mph becoming south southwest after midnight. Winds could gust as high as 22 mph.- Tuesday 2025-10-21, Mostly Sunny. Mostly sunny, with a high near 57.
- Tuesday Night 2025-10-21, Partly Cloudy. Partly cloudy, with a low around 30.
- Wednesday 2025-10-22, Mostly Sunny. Mostly sunny, with a high near 58.
- 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 64.