Weather forecast for: Simms MT
Last Update: 12:31 am MDT Sep 7, 2026
Overnight: Showers and possibly a thunderstorm. Low around 50. Northwest wind 3 to 5 mph. Chance of precipitation is 90%.
Labor Day: Showers and thunderstorms before 3pm, then a slight chance of rain between 3pm and 4pm. High near 63. Breezy, with a west wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night: A slight chance of rain before 8pm, then a chance of rain after 5am. Partly cloudy, with a low around 45. West southwest wind 14 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Tuesday: Rain likely. Mostly cloudy, with a high near 64. Southwest wind 13 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Tuesday Night: Partly cloudy, with a low around 43. West northwest wind 7 to 9 mph becoming southwest after midnight.
Wednesday: Sunny, with a high near 77. Southwest wind 9 to 16 mph, with gusts as high as 26 mph.
Wednesday Night: Mostly clear, with a low around 50. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 33 mph.
Thursday: Sunny, with a high near 79. Breezy, with a south southwest wind 22 to 26 mph, with gusts as high as 36 mph.
Thursday Night: A slight chance of showers after midnight. Partly cloudy, with a low around 46.
Friday: A slight chance of showers. Mostly sunny, with a high near 63.
Friday Night: A chance of showers. Mostly cloudy, with a low around 39.
Saturday: A chance of showers. Mostly cloudy, with a high near 55.
Saturday Night: A chance of showers. Mostly cloudy, with a low around 37.
Sunday: A chance of showers. Partly sunny, with a high near 59.
WeatherWorld.com
