St. Peters, Missouri Weather:
Thursday, December 31, 2026
Snowy Weather
Day 36°
Night 16°
Precipitation 1 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (December 31, 2025)
Cloudy Weather

Day

39°

Night

27°

Wind

9 mph

UV Index

1

Precipitation

0 %