In October, Missoula typically sees daytime highs of 11.6°C and overnight lows around -1.5°C. Compared to the annual average high of 11.0°C, October runs +0.6°C.
October in Missoula averages a daytime high of 11.6°C and an overnight low of -1.5°C.
October runs +0.6°C compared to Missoula's annual average high of 11.0°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 11.6°C and cooler evenings around -1.5°C.