St. Peters, Missouri Weather:
Monday, October 19, 2026
Rainy Weather
Day 70°
Night 54°
Precipitation 60 %
Wind 4 mph
UV Index (0 - 11+) 2
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 %