Hourly Weather | Today Tuesday, September 1, 2026
Johnson City, Tennessee
12 PM
Cloudy Weather
84°
Feels Like 99°
7
Humidity: 60%
UV Index: 7
Wind: 5 mph
1 PM
Cloudy Weather
88°
Feels Like 100°
7
Humidity: 53%
UV Index: 8
Wind: 5 mph
2 PM
Cloudy Weather
90°
Feels Like 102°
7
Humidity: 49%
UV Index: 7
Wind: 5 mph
3 PM
Cloudy Weather
91°
Feels Like 100°
7
Humidity: 47%
UV Index: 5
Wind: 5 mph
4 PM
Cloudy Weather
93°
Feels Like 100°
7
Humidity: 44%
UV Index: 4
Wind: 6 mph
5 PM
Cloudy Weather
91°
Feels Like 97°
7
Humidity: 47%
UV Index: 3
Wind: 5 mph
6 PM
Cloudy Weather
90°
Feels Like 93°
7
Humidity: 49%
UV Index: 1
Wind: 5 mph
7 PM
Cloudy Weather
88°
Feels Like 91°
5
Humidity: 57%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
82°
Feels Like 88°
0
Humidity: 66%
UV Index: 0
Wind: 4 mph
9 PM
Cloudy Night
81°
Feels Like 84°
0
Humidity: 73%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
77°
Feels Like 81°
0
Humidity: 80%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
73°
Feels Like 77°
0
Humidity: 87%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.13 µg/m³
  • PM10: 5.67 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.01 µg/m³
  • PM10: 5.42 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.85 µg/m³
  • PM10: 5.22 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.7 µg/m³
  • PM10: 5.06 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 4.96 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.45 µg/m³
  • PM10: 4.82 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.41 µg/m³
  • PM10: 4.91 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.49 µg/m³
  • PM10: 5.26 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.57 µg/m³
  • PM10: 5.6 µg/m³
  • O3: 0.023 ppm
  • NO2: 3.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

9 PM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.61 µg/m³
  • PM10: 5.88 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.73 µg/m³
  • PM10: 6.19 µg/m³
  • O3: 0.019 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.85 µg/m³
  • PM10: 6.43 µg/m³
  • O3: 0.018 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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