I-15 weather conditions near Helena, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Clear 84°F 2025-06-18T18:30:00
• 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 Chance T-storms. A 50 percent chance of showers and thunderstorms after 3pm. 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, Showers Likely. A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 55. West northwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.
• Friday 2025-06-20, Chance Rain then Showers. A chance of rain, 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 90%.
• Friday Night 2025-06-20, Showers. Showers and possibly a thunderstorm. Low around 44. Northwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
• Saturday 2025-06-21, Showers. Rain before noon, then showers likely and possibly a thunderstorm after noon. High near 61. West wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
• Saturday Night 2025-06-21, Rain Likely. Rain likely, mainly after midnight. Mostly cloudy, with a low around 40. West northwest wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
• Sunday 2025-06-22, Showers. Rain before noon, then showers and possibly a thunderstorm after noon. Cloudy, with a high near 56. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.
• Sunday Night 2025-06-22, Slight Chance Rain then Mostly Clear. A slight chance of rain before midnight. Partly cloudy, with a low around 36.
• Monday 2025-06-23, Mostly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67.
• Monday Night 2025-06-23, Partly Cloudy. Partly cloudy, with a low around 43.
• Tuesday 2025-06-24, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74.
• Tuesday Night 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 47.
• Wednesday 2025-06-25, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.