St. Peters, Missouri Weather:
Wednesday, November 18, 2026
Sunny Weather
Day 59°
Night 37°
Precipitation 1 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (November 18, 2025)
Sunny with a Chance of Thunderstorms

Day

66°

Night

46°

Wind

7 mph

UV Index

3

Precipitation

55 %