Today | Weather | Thursday, December 4, 2025

Weather in Chattanooga, Tennessee

04:30 AM
Now
Cloudy Night
32° F
Feels Like 34°
Precipitation 0 %
Wind 4 mph
Humidity 89 %
Today
Cloudy Weather
Day 48°
Night 39°
Precipitation 25 %
Wind 5 mph
UV Index (0 - 11+) 1

Chattanooga Weather Forecast Updated

19 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 4, 2024)
Rainy Weather

Day

54°

Night

39°

Wind

8 mph

Precipitation

55 %

Air Quality in Chattanooga

NOW
53 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 13.24 µg/m³
PM10 18.26 µg/m³
O3 0.016 ppm
NO2 7 ppb
SO2 0.1 ppb
CO 0.22 ppm
NH3 10.42 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.513.24 µg/m³
PM1018.26 µg/m³
O331.34 µg/m³
NO213.15 µg/m³
SO20.23 µg/m³
CO252.31 µg/m³
NH310.42 µg/m³
NO0 µg/m³