Hourly Weather | Today Wednesday, August 12, 2026
Alpharetta, Georgia
9 AM
Cloudy Weather
73°
Feels Like 79°
20
Humidity: 97%
UV Index: 1
Wind: 7 mph
10 AM
Cloudy Weather
77°
Feels Like 84°
20
Humidity: 88%
UV Index: 2
Wind: 8 mph
11 AM
Cloudy Weather
81°
Feels Like 90°
20
Humidity: 81%
UV Index: 3
Wind: 8 mph
12 PM
Cloudy Weather
82°
Feels Like 97°
20
Humidity: 74%
UV Index: 9
Wind: 9 mph
1 PM
Cloudy Weather
84°
Feels Like 99°
18
Humidity: 68%
UV Index: 10
Wind: 9 mph
2 PM
Cloudy Weather
88°
Feels Like 100°
15
Humidity: 64%
UV Index: 9
Wind: 9 mph
3 PM
Cloudy Weather
88°
Feels Like 99°
15
Humidity: 61%
UV Index: 7
Wind: 9 mph
4 PM
Cloudy Weather
90°
Feels Like 99°
19
Humidity: 57%
UV Index: 4
Wind: 9 mph
5 PM
Cloudy Weather
88°
Feels Like 95°
43
Humidity: 60%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
86°
Feels Like 91°
47
Humidity: 63%
UV Index: 2
Wind: 8 mph
7 PM
Sunny with a Chance of Thunderstorms
81°
Feels Like 84°
51
Humidity: 84%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
81°
Feels Like 84°
40
Humidity: 79%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
79°
Feels Like 84°
34
Humidity: 84%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
75°
Feels Like 81°
37
Humidity: 89%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Weather
73°
Feels Like 79°
47
Humidity: 93%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
13 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.13 µg/m³
  • PM10: 4.54 µg/m³
  • O3: 0.010 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

10 AM
13 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.09 µg/m³
  • PM10: 4.47 µg/m³
  • O3: 0.012 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

11 AM
17 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.24 µg/m³
  • PM10: 4.57 µg/m³
  • O3: 0.019 ppm
  • NO2: 1 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

12 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.86 µg/m³
  • PM10: 3.54 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.76 µg/m³
  • PM10: 3.27 µg/m³
  • O3: 0.031 ppm
  • NO2: 0.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

2 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.97 µg/m³
  • PM10: 3.47 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

3 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.13 µg/m³
  • PM10: 3.63 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

4 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.15 µg/m³
  • PM10: 3.67 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

5 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.05 µg/m³
  • PM10: 3.57 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

6 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.15 µg/m³
  • PM10: 3.83 µg/m³
  • O3: 0.033 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.39 µg/m³
  • PM10: 4.4 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.49 µg/m³
  • PM10: 4.8 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.51 µg/m³
  • PM10: 5.2 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

10 PM
15 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.58 µg/m³
  • PM10: 5.83 µg/m³
  • O3: 0.016 ppm
  • NO2: 2.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.65 µg/m³
  • PM10: 6.45 µg/m³
  • O3: 0.013 ppm
  • NO2: 3.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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