Weather forecast for: Helena MT
Last Update: 4:21 pm MDT Sep 15, 2026
Tonight: Partly cloudy, with a low around 45. North wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 22 mph.
Wednesday: Mostly sunny, with a high near 66. Light and variable wind becoming north 5 to 9 mph in the morning.
Wednesday Night: Mostly clear, with a low around 44. North northwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Thursday: Sunny, with a high near 78. Calm wind becoming east around 6 mph in the afternoon.
Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely between 9pm and midnight. Mostly cloudy, with a low around 50. Northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%.
Friday: A chance of rain, then showers and possibly a thunderstorm after noon. High near 73. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 80%.
Friday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 49. Northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%.
Saturday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night: Mostly clear, with a low around 47.
Sunday: Sunny, with a high near 75.
Sunday Night: Mostly clear, with a low around 46.
Monday: Sunny, with a high near 77.
Monday Night: Partly cloudy, with a low around 47.
Tuesday: Sunny, with a high near 74.
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