St. Louis, Missouri Weather:
Sunday, August 16, 2026
Cloudy Weather
Day 90°
Night 72°
Precipitation 5 %
Wind 5 mph
UV Index (0 - 11+) 6
Weather Forecast History
Last Year's Weather on This Day (August 16, 2025)
Sunny with a Chance of Thunderstorms

Day

99°

Night

73°

Wind

5 mph

UV Index

90

Precipitation

55 %