St. Peters, Missouri Weather:
Monday, October 19, 2026
Cloudy Weather
Day 61°
Night 41°
Precipitation 0 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (October 19, 2025)
Sunny Weather

Day

64°

Night

43°

Wind

16 mph

UV Index

40

Precipitation

0 %