Great Falls, Montana Weather:
Friday, December 18, 2026
Cloudy Weather
Day 30°
Night 19°
Precipitation 55 %
Wind 25 mph
Weather Forecast History
Last Year's Weather on This Day (December 18, 2025)
Cloudy Weather

Day

41°

Night

36°

Wind

16 mph

UV Index

1

Precipitation

10 %