I-15 weather conditions near Helena, Montana

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 58°F 2025-06-16T07:00:00
• Today 2025-06-16, Slight Chance Showers then Showers Likely. A chance of showers before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 75. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Tonight 2025-06-16, Chance T-storms then Slight Chance Showers. A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 53. Northeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 40%.
• Tuesday 2025-06-17, Partly Sunny then Slight Chance Showers. A 20 percent chance of showers after noon. Mostly sunny, with a high near 79. Light and variable wind becoming west northwest 5 to 8 mph in the morning.
• Tuesday Night 2025-06-17, Mostly Clear. Mostly clear, with a low around 53. West southwest wind 6 to 8 mph, with gusts as high as 18 mph.
• Wednesday 2025-06-18, Sunny. Sunny, with a high near 83. Light west southwest wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
• Wednesday Night 2025-06-18, Mostly Clear. Mostly clear, with a low around 53. West southwest wind 5 to 10 mph, with gusts as high as 21 mph.
• Juneteenth 2025-06-19, Sunny. Sunny, with a high near 85. Calm wind becoming north 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
• Thursday Night 2025-06-19, Slight Chance T-storms then Mostly Clear. A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54. North wind 5 to 8 mph becoming light and variable after midnight.
• Friday 2025-06-20, Sunny then Chance T-storms. A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
• Friday Night 2025-06-20, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
• Saturday 2025-06-21, Showers Likely. Showers likely and possibly a thunderstorm. Partly sunny, with a high near 68.
• Saturday Night 2025-06-21, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42.
• Sunday 2025-06-22, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 56.