| NWS Forecast for: Helena MT Issued by: National Weather Service Great Falls, MT Last Update: 3:52 am MDT Sep 12, 2026 |  |
| Today: Cloudy, then gradually becoming mostly sunny, with a high near 65. Light and variable wind becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph. Tonight: Partly cloudy, with a low around 42. North northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Sunday: A 40 percent chance of showers, mainly between 2pm and 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 69. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Sunday Night: A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 43. West northwest wind 9 to 15 mph becoming southwest after midnight. Winds could gust as high as 26 mph. Monday: Mostly sunny, with a high near 64. Breezy, with a west southwest wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph. Monday Night: Mostly clear, with a low around 39. West northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 25 mph. Tuesday: Mostly sunny, with a high near 67. Calm wind becoming north 5 to 7 mph in the afternoon. Tuesday Night: Mostly cloudy, with a low around 42. North northwest wind 5 to 9 mph becoming light northwest after midnight. Wednesday: Mostly sunny, with a high near 67. Wednesday Night: Mostly clear, with a low around 41. Thursday: Sunny, with a high near 75. Thursday Night: Mostly clear, with a low around 45. Friday: Mostly sunny, with a high near 77. | |
| Helena MT 46.61°N 111.99°W (Elev. 3878 ft) | |
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