St. Peters, Missouri Weather:
Monday, October 5, 2026
Sunny Weather
Day 79°
Night 57°
Precipitation 5 %
Wind 8 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (October 5, 2025)
Sunny Weather

Day

86°

Night

63°

Wind

8 mph

UV Index

40

Precipitation

0 %