St. Louis, Missouri Weather:
Wednesday, March 18, 2026
Cloudy Weather
Day 66°
Night 45°
Precipitation 2 %
Wind 9 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Cloudy Weather

Day

81°

Night

59°

Wind

15 mph

UV Index

5

Precipitation

0 %