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

☔ 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.