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
Current condition: Clear 43°F 2025-10-17T00:30:00 
Overnight 2025-10-17, Partly Cloudy. Partly cloudy, with a low around 35. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Friday 2025-10-17, Partly Sunny. Partly sunny, with a high near 59. South southwest wind 8 to 18 mph becoming west in the afternoon. Winds could gust as high as 32 mph.Friday Night 2025-10-17, Rain Likely then Chance Rain/Snow. Rain likely before midnight, then a chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Partly cloudy, with a low around 30. West wind 8 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday 2025-10-18, Mostly Sunny. Mostly sunny, with a high near 55. West wind 7 to 9 mph becoming south in the afternoon.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 37. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Sunday 2025-10-19, Rain. Rain. High near 55. South wind 9 to 15 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%.
Sunday Night 2025-10-19, Rain Likely. Rain likely, mainly after midnight. Mostly cloudy, with a low around 34. West southwest wind 11 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Monday 2025-10-20, Chance Rain. A chance of rain, mainly before noon. Partly sunny, with a high near 50. West wind 10 to 15 mph, with gusts as high as 26 mph.
Monday Night 2025-10-20, Mostly Clear. Mostly clear, with a low around 29.- 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 31.
- 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 34.
- Thursday 2025-10-23, Mostly Sunny. Mostly sunny, with a high near 64.