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
This Afternoon 2025-10-14, Chance Rain. A 30 percent chance of rain before 3pm. Partly sunny, with a high near 38. North northwest wind 3 to 6 mph.
Tonight 2025-10-14, Mostly Cloudy then Slight Chance Rain/Snow and Patchy Fog. A slight chance of rain and snow before 3am, then a slight chance of rain and snow after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 26. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday 2025-10-15, Chance Rain/Snow and Patchy Fog then Chance Rain. A chance of rain and snow between 7am and 10am, then a chance of rain after 10am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 50. Calm wind. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night 2025-10-15, Rain Likely. Rain likely, mainly after midnight. Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 60%.
Thursday 2025-10-16, Rain Likely then Chance Rain. Rain likely, mainly before noon. Partly sunny, with a high near 54. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%.
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. West southwest wind 6 to 13 mph, with gusts as high as 24 mph.
Friday 2025-10-17, Mostly Sunny then Slight Chance Rain. A 20 percent chance of rain after noon. Mostly sunny, with a high near 56. West southwest wind 8 to 14 mph, with gusts as high as 25 mph.
Friday Night 2025-10-17, Chance Rain. A chance of rain. Mostly cloudy, with a low around 32. West wind 9 to 11 mph, with gusts as high as 23 mph.
Saturday 2025-10-18, Mostly Sunny. Mostly sunny, with a high near 58.
Saturday Night 2025-10-18, Partly Cloudy then Slight Chance Rain. A slight chance of rain after midnight. Partly cloudy, with a low around 37.
Sunday 2025-10-19, Chance Rain. A chance of rain. Partly sunny, with a high near 63.
Sunday Night 2025-10-19, Chance Rain. A chance of rain. Mostly cloudy, with a low around 34.
Monday 2025-10-20, Rain Likely. Rain likely. Mostly cloudy, with a high near 53.