Hourly Weather | Today Monday, September 21, 2026
Johns Creek, Georgia
3 PM
Cloudy Weather
90°
Feels Like 99°
47
Humidity: 48%
UV Index: 4
Wind: 4 mph
4 PM
Sunny with a Chance of Thunderstorms
90°
Feels Like 93°
51
Humidity: 62%
UV Index: 1
Wind: 5 mph
5 PM
Cloudy Weather
86°
Feels Like 95°
19
Humidity: 64%
UV Index: 2
Wind: 5 mph
6 PM
Cloudy Weather
84°
Feels Like 91°
15
Humidity: 66%
UV Index: 1
Wind: 5 mph
7 PM
Cloudy Weather
82°
Feels Like 86°
19
Humidity: 66%
UV Index: 0
Wind: 5 mph
8 PM
Stormy Weather
79°
Feels Like 82°
51
Humidity: 80%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
75°
Feels Like 81°
47
Humidity: 83%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
75°
Feels Like 79°
40
Humidity: 87%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
73°
Feels Like 79°
34
Humidity: 90%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.27 µg/m³
  • PM10: 4.7 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.49 µg/m³
  • PM10: 4.95 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.64 µg/m³
  • PM10: 5.13 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.89 µg/m³
  • PM10: 5.52 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.18 µg/m³
  • PM10: 6.02 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.38 µg/m³
  • PM10: 6.38 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.42 µg/m³
  • PM10: 6.53 µg/m³
  • O3: 0.037 ppm
  • NO2: 2 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.57 µg/m³
  • PM10: 6.83 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.75 µg/m³
  • PM10: 7.08 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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