Hourly Weather | Today Wednesday, May 20, 2026
Alpharetta, Georgia
7 PM
Cloudy Weather
82°
Feels Like 84°
47
Humidity: 61%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Weather
81°
Feels Like 82°
34
Humidity: 68%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
77°
Feels Like 79°
34
Humidity: 70%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
73°
Feels Like 75°
37
Humidity: 78%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
72°
Feels Like 73°
43
Humidity: 85%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 PM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.56 µg/m³
  • PM10: 4.32 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 4.56 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
23 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.71 µg/m³
  • PM10: 4.86 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.8 µg/m³
  • PM10: 5.35 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.3 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
12 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.88 µg/m³
  • PM10: 5.79 µg/m³
  • O3: 0.012 ppm
  • NO2: 2.3 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.