October weather forecast
Montana, USA

October brings a more pronounced shift to autumn in Montana, with temperatures continuing to drop and weather conditions becoming more variable. The western and eastern parts of the state experience different climates, reflecting the influence of the Continental Divide and varying topography.

The minimum temperature in October ranges from 30°F (-1.1°C) to 40°F (4.4°C), and the maximum temperature generally falls between 50°F (10°C) and 60°F (15.6°C). The drop in temperature becomes more significant, and frost becomes common, especially in the eastern parts of Montana.

Snow becomes a possibility in October, particularly in the mountainous regions. Rainfall may increase, and the weather can shift rapidly, reflecting the changeable nature of autumn in Montana.

Compared to September, October sees further cooling, with shorter days and more variable weather. The landscapes continue their transformation, with fall colors becoming more prominent, and the first hints of winter appearing in the higher elevations.

Outdoor activities remain possible in October, though the weather may be less predictable. Tourism numbers decrease, reflecting the seasonal shift, and accommodations may be easier to find. The natural parks and outdoor recreation areas continue to offer scenic beauty, enhanced by the colors and textures of autumn.

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• Billings - October »
  In Billings during October, snow falls for 2.7 days and regularly aggregates up to 1.85" (47mm) of snow. In Billings, during October, snow falls for 2.7 days and regularly aggregates up to 1.85" (47mm) of snow.
• Missoula - October »
  In Missoula, during October, the rain falls for 5.2 days and regularly aggregates up to 0.28" (7mm) of precipitation. On the first day of October in Missoula sunrise is at 7:35 am and sunset at 7:14 pm.
• Great Falls - October »
  In Great Falls, in October, during 5.8 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. In Great Falls, during October, the rain falls for 5.8 days and regularly aggregates up to 0.28" (7mm) of precipitation.
• Bozeman - October »
  In Bozeman in October, snow falls for 8.8 days, with typically accumulated 7.17" (182mm) of snow. In Bozeman during October, snow falls for 8.8 days and regularly aggregates up to 7.17" (182mm) of snow.
• Butte - October »
  In Butte in October, it is raining for 8 days, with typically 0.87" (22mm) of accumulated precipitation. With the transition into October, Butte experiences a significant decrease in average high-temperatures, moving down from a comfortable 64.9°F (18.3°C) in September to a chilly 48.6°F (9.2°C).
• Helena - October »
  In Helena, in October, during 4.6 snowfall days, 2.72" (69mm) of snow is typically accumulated. On the last day of October, in Helena, sunrise is at 8:09 am and sunset at 6:13 pm MDT.
• Kalispell - October »
  In Kalispell during October, snow falls for 3.9 days and regularly aggregates up to 1.26" (32mm) of snow. In Kalispell in October, during 13.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.
• Havre - October »
  In Havre during October, snow falls for 1.8 days and regularly aggregates up to 2.4" (61mm) of snow. In Havre during October, the rain falls for 5.4 days and regularly aggregates up to 0.63" (16mm) of precipitation.
• Anaconda - October »
  In Anaconda, in October, snow falls for 7 days, with typically accumulated 4.33" (110mm) of snow. On the first day of October in Anaconda sunrise is at 7:31 am and sunset at 7:11 pm.
• Miles City - October »
  The shift from September to October in Miles City is characterized by a clear decrease in the average high-temperature, reducing from a warm 74.3°F (23.5°C) to a refreshing 56.5°F (13.6°C). October is the first month it typically snows in Miles City, Montana.
• Belgrade - October »
  In Belgrade during October, the rain falls for 13.1 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Belgrade in October, during 5.7 snowfall days, 3.27" (83mm) of snow is typically accumulated.
• Livingston - October »
  On the last day of October, in Livingston sunrise is at 8:01 am and sunset at 6:09 pm MDT. October witnesses a discernable change in Livingston, Montana's weather dynamics as winter edges closer.