Today | Weather | Monday, July 20, 2026

Weather in Marietta, Georgia

09:52 PM
Now
Cloudy Night
82° F
Feels Like 88°
Precipitation 40 %
Wind 6 mph
Humidity 71 %
Today
Rainy Night
Day 95°
Night 73°
Precipitation 55 %
Wind 6 mph

Marietta Weather Forecast Updated

22 minutes ago
Last updated on

Air Quality in Marietta

NOW
22 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.52 µg/m³
PM10 2.09 µg/m³
O3 0.024 ppm
NO2 1.4 ppb
SO2 0.1 ppb
CO 0.10 ppm
NH3 1.55 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)
PM2.51.52 µg/m³
PM102.09 µg/m³
O346.87 µg/m³
NO22.72 µg/m³
SO20.19 µg/m³
CO110.48 µg/m³
NH31.55 µg/m³
NO0 µg/m³