I-15 weather conditions near Helena, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Clear 70°F 2025-07-11T22:45:00
• Tonight 2025-07-11, Partly Cloudy. Partly cloudy, with a low around 53. West southwest wind 3 to 6 mph.
• Saturday 2025-07-12, Mostly Sunny. Mostly sunny, with a high near 89. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 25 mph.
• Saturday Night 2025-07-12, Mostly Clear. Mostly clear, with a low around 58. West northwest wind 6 to 14 mph, with gusts as high as 24 mph.
• Sunday 2025-07-13, Sunny. Sunny, with a high near 93. Light west southwest wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
• Sunday Night 2025-07-13, Mostly Clear. Mostly clear, with a low around 60. West northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 20 mph.
• Monday 2025-07-14, Sunny then Slight Chance T-storms. A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 90. Light and variable wind becoming northwest 10 to 15 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
• Monday Night 2025-07-14, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. North northwest wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
• Tuesday 2025-07-15, Chance Showers. A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 69. North wind 6 to 14 mph, with gusts as high as 24 mph.
• Tuesday Night 2025-07-15, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
• Wednesday 2025-07-16, Slight Chance Showers. A slight chance of showers. Partly sunny, with a high near 73.
• Wednesday Night 2025-07-16, Partly Cloudy. Partly cloudy, with a low around 48.
• Thursday 2025-07-17, Sunny. Sunny, with a high near 84.
• Thursday Night 2025-07-17, Mostly Clear. Mostly clear, with a low around 52.
• Friday 2025-07-18, Sunny. Sunny, with a high near 88.