Typical Weather in Great Falls, MT in January
38° F Avg High
19° F Avg Low
3 Rainy Days
☀️ Temperature Summary
Highs in January are typically around 38°F, which is cooler than usual in Great Falls. Pack a jacket if you're considering a visit to Great Falls at this time. Overnight lows can reach 19°F.
You may want to consider a warmer month to visit Great Falls, 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
You can expect about a 10% chance of rain for any given day in January. It's one of the drier months of the year for Great Falls, with total rainfall for the month around 1 inches.
Rainfall Throughout the Year
Planning a trip to Great Falls? Try our free trip weather planner