I-15 weather conditions near Helena, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Clear 48°F 2025-06-22T00:45:00
• Overnight 2025-06-22, Rain Likely. A chance of showers before 3am, then rain likely after 3am. Mostly cloudy, with a low around 42. West wind 9 to 13 mph. Chance of precipitation is 70%.
• Sunday 2025-06-22, Showers. Rain before 3pm, then showers and possibly a thunderstorm after 3pm. High near 47. North northwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Sunday Night 2025-06-22, Chance Rain then Partly Cloudy. A 50 percent chance of rain before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 37. North northwest wind 6 to 9 mph becoming south southwest after midnight.
• Monday 2025-06-23, Sunny then Chance Showers. A 30 percent chance of showers after noon. Mostly sunny, with a high near 67. South wind 6 to 8 mph.
• Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 45. West southwest wind around 6 mph becoming calm in the evening.
• Tuesday 2025-06-24, Sunny. Sunny, with a high near 75. Calm wind becoming east northeast around 6 mph in the afternoon.
• Tuesday Night 2025-06-24, Mostly Clear. Mostly clear, with a low around 50. East northeast wind around 6 mph becoming south southwest after midnight.
• Wednesday 2025-06-25, Mostly Sunny. Mostly sunny, with a high near 80. South southeast wind 3 to 7 mph.
• Wednesday Night 2025-06-25, Partly Cloudy. Partly cloudy, with a low around 54.
• Thursday 2025-06-26, Partly Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 78.
• Thursday Night 2025-06-26, Slight Chance T-storms then Partly Cloudy. A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
• Friday 2025-06-27, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
• Friday Night 2025-06-27, Slight Chance T-storms then Mostly Clear. A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.
• Saturday 2025-06-28, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms. Sunny, with a high near 79.