St. Peters, Missouri Weather:
Tuesday, December 15, 2026
Cloudy Weather
Day 43°
Night 27°
Precipitation 0 %
Wind 7 mph
Weather Forecast History
Last Year's Weather on This Day (December 15, 2025)
Sunny Weather

Day

46°

Night

27°

Wind

12 mph

UV Index

2

Precipitation

0 %