I-15 weather conditions near Helena, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Clear 70°F 2025-07-13T02:15:00
• Overnight 2025-07-13, Mostly Clear. Mostly clear, with a low around 58. West southwest wind 3 to 5 mph.
• Sunday 2025-07-13, Sunny. Sunny, with a high near 93. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.
• Sunday Night 2025-07-13, Mostly Clear. Mostly clear, with a low around 61. West southwest wind 5 to 11 mph, with gusts as high as 22 mph.
• Monday 2025-07-14, Sunny. Sunny, with a high near 93. Light west southwest wind becoming west northwest 12 to 17 mph in the morning. Winds could gust as high as 28 mph.
• 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 14 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.
• Tuesday 2025-07-15, Showers Likely. Showers likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 62. North wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
• Tuesday Night 2025-07-15, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. North wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
• Wednesday 2025-07-16, Slight Chance Showers. A slight chance of showers. Partly sunny, with a high near 71. Northwest wind 5 to 8 mph becoming northeast in the afternoon.
• Wednesday Night 2025-07-16, Mostly Clear. Mostly clear, with a low around 47.
• Thursday 2025-07-17, Sunny. Sunny, with a high near 82.
• Thursday Night 2025-07-17, Mostly Clear. Mostly clear, with a low around 52.
• Friday 2025-07-18, Sunny. Sunny, with a high near 86.
• Friday Night 2025-07-18, Mostly Clear. Mostly clear, with a low around 54.
• Saturday 2025-07-19, Sunny. Sunny, with a high near 91.