Today | Weather | Thursday, January 15, 2026

Weather in Alpharetta, Georgia

12:54 AM
Now
Night
25° F
Feels Like 21°
Precipitation 0 %
Wind 5 mph
Humidity 59 %
Today
Cloudy Weather
Day 36°
Night 21°
Precipitation 0 %
Wind 16 mph
UV Index (0 - 11+) 1

Alpharetta Weather Forecast Updated

Last updated on

Air Quality in Alpharetta

NOW
33 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.04 µg/m³
PM10 1.38 µg/m³
O3 0.035 ppm
NO2 1.8 ppb
SO2 0.5 ppb
CO 0.14 ppm
NH3 0.65 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)
PM2.51.04 µg/m³
PM101.38 µg/m³
O369.61 µg/m³
NO23.41 µg/m³
SO21.18 µg/m³
CO157.98 µg/m³
NH30.65 µg/m³
NO0 µg/m³