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 2025-06-17, Mostly Clear. Mostly clear, with a low around 48. West northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Wednesday 2025-06-18, Sunny. Sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 22 mph.- Wednesday Night 2025-06-18, Mostly Clear. Mostly clear, with a low around 51. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.
- Juneteenth 2025-06-19, Sunny. Sunny, with a high near 86. Calm wind becoming north 5 to 7 mph in the afternoon.
Thursday Night 2025-06-19, Chance Showers. A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 52. Northwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 40%.Friday 2025-06-20, Slight Chance Showers then Showers Likely. A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 77. Calm wind becoming north 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Friday Night 2025-06-20, Showers Likely. Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 48. Northwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Saturday 2025-06-21, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67. West wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night 2025-06-21, Showers Likely. Showers likely, mainly before midnight. Mostly cloudy, with a low around 42.- Sunday 2025-06-22, Showers Likely. Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 59.
Sunday Night 2025-06-22, Chance Showers then Mostly Cloudy. A chance of showers. Mostly cloudy, with a low around 37.
Monday 2025-06-23, Mostly Sunny then Chance Showers. A chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Monday Night 2025-06-23, Partly Cloudy. Partly cloudy, with a low around 41.Tuesday 2025-06-24, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76.