Today | Weather | Monday, September 14, 2026

Weather in Chattanooga, Tennessee

02:20 AM
Now
Cloudy Night
73° F
Feels Like 77°
Precipitation 0 %
Wind 2 mph
Humidity 89 %
Today
Cloudy Weather
Day 95°
Night 70°
Precipitation 25 %
Wind 6 mph
UV Index (0 - 11+) 7

Chattanooga Weather Forecast Updated

16 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 14, 2025)
Night

Day

88°

Night

63°

Wind

4 mph

Precipitation

3 %

Air Quality in Chattanooga

NOW
23 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.56 µg/m³
PM10 12.43 µg/m³
O3 0.012 ppm
NO2 2.7 ppb
SO2 0 ppb
CO 0.12 ppm
NH3 13.38 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.55.56 µg/m³
PM1012.43 µg/m³
O323.54 µg/m³
NO25.11 µg/m³
SO20.13 µg/m³
CO139.65 µg/m³
NH313.38 µg/m³
NO0 µg/m³