Today | Weather | Monday, April 27, 2026

Weather in Roswell, Georgia

06:00 PM
Now
Cloudy Weather
75° F
Feels Like 73°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 2
Humidity 38 %
Today
Cloudy Weather
Day 75°
Night 57°
Precipitation 1 %
Wind 9 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Roswell Weather Forecast Updated

Last updated on

Air Quality in Roswell

NOW
46 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.52 µg/m³
PM10 5.4 µg/m³
O3 0.050 ppm
NO2 0.7 ppb
SO2 0.4 ppb
CO 0.12 ppm
NH3 1.24 µg/m³
NO 0.11 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)
PM2.54.52 µg/m³
PM105.4 µg/m³
O398.45 µg/m³
NO21.39 µg/m³
SO21.02 µg/m³
CO139.08 µg/m³
NH31.24 µg/m³
NO0.11 µg/m³