Weather forecast for: Harrison MT
Last Update: 4:01 am MDT Sep 13, 2026
Today: Mostly sunny, with a high near 75. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 24 mph.
Tonight: A chance of showers before 4am, then a slight chance of showers after 5am. Partly cloudy, with a low around 40. West wind 8 to 13 mph becoming light and variable. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Monday: Mostly sunny, with a high near 63. South southwest wind 8 to 13 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.
Monday Night: Mostly clear, with a low around 36. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Tuesday: Mostly sunny, with a high near 71. Calm wind.
Tuesday Night: Partly cloudy, with a low around 41. Light and variable wind.
Wednesday: Mostly sunny, with a high near 69. Light north wind.
Wednesday Night: Mostly clear, with a low around 40. East northeast wind around 5 mph becoming calm in the evening.
Thursday: Sunny, with a high near 72.
Thursday Night: A chance of showers. Mostly cloudy, with a low around 43.
Friday: Sunny, with a high near 74.
Friday Night: Mostly clear, with a low around 43.
Saturday: Sunny, with a high near 77.
WeatherWorld.com
