St. Peters, Missouri Weather:
Sunday, December 13, 2026
Sunny Weather
Day 46°
Night 30°
Precipitation 41 %
Wind 15 mph
Weather Forecast History
Last Year's Weather on This Day (December 13, 2025)
Snowy Weather

Day

27°

Night

5°

Wind

12 mph

UV Index

1

Precipitation

45 %