Chattanooga, Tennessee Weather:
Sunday, September 20, 2026
Sunny with a Chance of Thunderstorms
Day 88°
Night 66°
Precipitation 64 %
Wind 5 mph
UV Index (0 - 11+) 6
Weather Forecast History
Last Year's Weather on This Day (September 20, 2025)
Cloudy Night

Day

90°

Night

64°

Wind

4 mph

Precipitation

7 %