Today | Weather | Thursday, February 26, 2026

Weather in Alpharetta, Georgia

03:57 AM
Now
Cloudy Weather
57° F
Feels Like 54°
Precipitation 47 %
Wind 9 mph
Humidity 79 %
Today
Stormy Weather
Day 64°
Night 50°
Precipitation 88 %
Wind 13 mph
UV Index (0 - 11+) 1

Alpharetta Weather Forecast Updated

10 minutes ago
Last updated on

Air Quality in Alpharetta

NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.82 µg/m³
PM10 8.91 µg/m³
O3 0.047 ppm
NO2 0.7 ppb
SO2 0.1 ppb
CO 0.12 ppm
NH3 0.36 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)
PM2.53.82 µg/m³
PM108.91 µg/m³
O392.04 µg/m³
NO21.32 µg/m³
SO20.35 µg/m³
CO135.93 µg/m³
NH30.36 µg/m³
NO0 µg/m³