Charleston, South Carolina Weather:
Friday, September 18, 2026
Cloudy Weather
Day 84°
Night 75°
Precipitation 55 %
Wind 9 mph
UV Index (0 - 11+) 6
Weather Forecast History
Last Year's Weather on This Day (September 18, 2025)
Night

Day

84°

Night

70°

Wind

4 mph

Precipitation

5 %