I-15 weather conditions near Helena, Montana
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
This Afternoon 2025-08-25, Mostly Sunny. Mostly sunny, with a high near 88. East wind 3 to 8 mph.
Tonight 2025-08-25, Partly Cloudy. Partly cloudy, with a low around 53. North northeast wind 5 to 9 mph becoming calm after midnight.
Tuesday 2025-08-26, Partly Sunny. Partly sunny, with a high near 86. Calm wind becoming east northeast 5 to 7 mph in the afternoon.Tuesday Night 2025-08-26, Haze then Mostly Cloudy. Widespread haze between 7pm and 8pm. Mostly cloudy, with a low around 55. North northeast wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 18 mph.
- Wednesday 2025-08-27, Mostly Cloudy. Mostly cloudy, with a high near 82. Light and variable wind becoming east 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night 2025-08-27, Slight Chance T-storms then Chance Showers. A slight chance of showers and thunderstorms, then a chance of showers after 9pm. Mostly cloudy, with a low around 56. East wind 5 to 10 mph becoming light east southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Thursday 2025-08-28, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 73. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%.
Thursday Night 2025-08-28, Chance Showers. A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 53. West northwest wind 5 to 7 mph becoming light and variable after midnight.
Friday 2025-08-29, Chance Showers. A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77.Friday Night 2025-08-29, Slight Chance Showers then Partly Cloudy. A slight chance of showers before midnight. Partly cloudy, with a low around 51.
- Saturday 2025-08-30, Mostly Sunny. Mostly sunny, with a high near 82.
Saturday Night 2025-08-30, Mostly Clear. Mostly clear, with a low around 51.
Sunday 2025-08-31, Sunny. Sunny, with a high near 84.