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 81°F 2025-06-18T13:15:00 
This Afternoon 2025-06-18, Sunny. Sunny, with a high near 84. West northwest wind around 11 mph, with gusts as high as 22 mph.
Tonight 2025-06-18, Mostly Clear. Mostly clear, with a low around 52. West northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.Juneteenth 2025-06-19, Sunny then Slight Chance Showers. A 20 percent chance of showers after noon. Mostly sunny, with a high near 85. Light and variable wind becoming northwest 5 to 8 mph in the morning.
Thursday Night 2025-06-19, Chance T-storms then Chance Showers. A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. West northwest wind 5 to 8 mph becoming calm after midnight.
Friday 2025-06-20, Chance Showers then Showers. A chance of showers, then showers and possibly a thunderstorm after noon. High near 73. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Friday Night 2025-06-20, Showers. Showers and possibly a thunderstorm. Low around 49. Northwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday 2025-06-21, Showers. Showers and possibly a thunderstorm. High near 66. West wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Saturday Night 2025-06-21, Showers Likely. Showers likely. Mostly cloudy, with a low around 42. West northwest wind 8 to 13 mph, with gusts as high as 25 mph.
Sunday 2025-06-22, Showers. Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 59.Sunday Night 2025-06-22, Chance Showers then Partly Cloudy. A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 39.
Monday 2025-06-23, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 69.
Monday Night 2025-06-23, Slight Chance T-storms then Partly Cloudy. A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44.
Tuesday 2025-06-24, Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 75.