| NWS Forecast for: Helena MT Issued by: National Weather Service Great Falls, MT Last Update: 12:31 am MDT Jul 19, 2026 | |
| Overnight: Mostly clear, with a low around 59. Light south southwest wind. Sunday: A slight chance of showers between 3pm and 4pm. Sunny, with a high near 92. Light and variable wind becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%. Sunday Night: Partly cloudy, with a low around 57. West northwest wind 9 to 14 mph becoming light west after midnight. Winds could gust as high as 26 mph. Monday: Partly sunny, with a high near 87. Calm wind becoming north 5 to 8 mph in the afternoon. Monday Night: Partly cloudy, with a low around 60. North northeast wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Tuesday: Mostly sunny, with a high near 88. Calm wind becoming north northeast around 6 mph in the afternoon. Tuesday Night: Partly cloudy, with a low around 63. North northeast wind 5 to 7 mph becoming calm after midnight. Wednesday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. Light north wind. Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Thursday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 95. Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Saturday: A slight chance of showers and thunderstorms. Sunny, with a high near 93. | |
| Helena MT 46.61°N 112.02°W (Elev. 3940 ft) | |
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