St. Louis, Missouri Weather:
Saturday, August 15, 2026
Rainy Weather
Day 90°
Night 73°
Precipitation 68 %
Wind 2 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (August 15, 2025)
Night

Day

100°

Night

72°

Wind

6 mph

Precipitation

1 %