St. Peters, Missouri Weather:
Saturday, October 17, 2026
Rainy Weather
Day 73°
Night 46°
Precipitation 55 %
Wind 12 mph
Weather Forecast History
Last Year's Weather on This Day (October 17, 2025)
Cloudy Weather

Day

84°

Night

64°

Wind

8 mph

UV Index

40

Precipitation

0 %