Typical Weather in Missoula, MT in December
32° F Avg High
18° F Avg Low
5 Rainy Days
☀️ Temperature Summary
December is one of the cooler months of the year for Missoula, with highs averaging around 32°F. You can expect overnight lows near 18°F most days. This is the coldest month of the year in Missoula.
You may want to consider a warmer month to visit Missoula, unless you're ready to brave the cold.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In December you can expect close to a 15% chance of rain for any given day. It rains more than usual in December, with total rainfall for the month typically near 1 inches.
Rainfall Throughout the Year
Planning a trip to Missoula? Try our free trip weather planner