St. Peters, Missouri Weather:
Saturday, October 3, 2026
Cloudy Weather
Day 70°
Night 57°
Precipitation 25 %
Wind 2 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (October 3, 2025)
Cloudy Weather

Day

90°

Night

61°

Wind

6 mph

UV Index

50

Precipitation

4 %