Great Falls, Montana Weather:
Monday, December 21, 2026
Cloudy Weather
Day 36°
Night 16°
Precipitation 49 %
Wind 9 mph
Weather Forecast History
Last Year's Weather on This Day (December 21, 2025)
Cloudy Weather

Day

41°

Night

32°

Wind

8 mph

UV Index

2

Precipitation

11 %