Weather forecast for: Fallon MT
Last Update: 2:06 pm MDT Sep 6, 2026
Tonight: A 40 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 64. East northeast wind 8 to 10 mph becoming south southeast after midnight. Winds could gust as high as 18 mph.
Labor Day: A chance of showers before 11am, then a slight chance of showers and thunderstorms after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 85. South southeast wind 7 to 12 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 30%.
Monday Night: Mostly clear, with a low around 52. West wind 11 to 16 mph, with gusts as high as 31 mph.
Tuesday: Sunny, with a high near 75. Breezy, with a west wind 16 to 25 mph, with gusts as high as 40 mph.
Tuesday Night: Partly cloudy, with a low around 47. Breezy, with a west wind 19 to 24 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 38 mph.
Wednesday: Sunny, with a high near 79. West wind 6 to 11 mph, with gusts as high as 22 mph.
Wednesday Night: Mostly clear, with a low around 47. West northwest wind 5 to 8 mph becoming calm in the evening.
Thursday: Sunny, with a high near 86. Southwest wind 5 to 15 mph, with gusts as high as 29 mph.
Thursday Night: Mostly clear, with a low around 50. West northwest wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 21 mph.
Friday: Mostly sunny, with a high near 75. North northwest wind 5 to 10 mph, with gusts as high as 22 mph.
Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 44. North wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday: A chance of showers. Mostly cloudy, with a high near 67.
Saturday Night: A chance of showers. Mostly cloudy, with a low around 41.
Sunday: A slight chance of showers. Mostly sunny, with a high near 68.
WeatherWorld.com
