Weather forecast for: Boulder MT
Last Update: 12:31 pm MDT Sep 15, 2026
This Afternoon: Sunny, with a high near 66. East southeast wind around 9 mph.
Tonight: Partly cloudy, with a low around 42. North northwest wind 5 to 11 mph, with gusts as high as 20 mph.
Wednesday: Mostly sunny, with a high near 66. North wind 5 to 8 mph.
Wednesday Night: Mostly clear, with a low around 44. North wind around 6 mph becoming calm in the evening.
Thursday: Mostly sunny, with a high near 76. Calm wind becoming south southeast 5 to 9 mph in the afternoon.
Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 50. Southeast wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 70%.
Friday: A chance of rain, then showers and possibly a thunderstorm after noon. High near 70. Calm wind becoming west 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 47. Northwest wind around 6 mph becoming calm after midnight.
Saturday: A chance of rain. Partly sunny, with a high near 68.
Saturday Night: Partly cloudy, with a low around 46.
Sunday: Sunny, with a high near 72.
Sunday Night: Mostly clear, with a low around 46.
Monday: Sunny, with a high near 75.