Great Falls, Montana Weather:
Tuesday, December 15, 2026
Icy Road Conditions
Day 34°
Night 18°
Precipitation 55 %
Wind 31 mph
Weather Forecast History
Last Year's Weather on This Day (December 15, 2025)
Partly Sunny with Showers

Day

63°

Night

41°

Wind

27 mph

UV Index

2

Precipitation

49 %