Hourly Weather | Today Monday, April 27, 2026
Johnson City, Tennessee
12 PM
Cloudy Weather
72°
Feels Like 79°
0
Humidity: 49%
UV Index: 9
Wind: 7 mph
1 PM
Cloudy Weather
75°
Feels Like 82°
0
Humidity: 41%
UV Index: 10
Wind: 8 mph
2 PM
Cloudy Weather
79°
Feels Like 84°
0
Humidity: 37%
UV Index: 9
Wind: 8 mph
3 PM
Cloudy Weather
79°
Feels Like 82°
0
Humidity: 35%
UV Index: 6
Wind: 8 mph
4 PM
Cloudy Weather
81°
Feels Like 82°
0
Humidity: 32%
UV Index: 4
Wind: 8 mph
5 PM
Cloudy Weather
79°
Feels Like 79°
0
Humidity: 33%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 34%
UV Index: 2
Wind: 8 mph
7 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 39%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 40%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 45%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 51%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 56%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.72 µg/m³
  • PM10: 5.5 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 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: 5.2 µg/m³
  • PM10: 5.92 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.54 µg/m³
  • PM10: 6.24 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.05 µg/m³
  • PM10: 5.71 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.43 µg/m³
  • PM10: 5.05 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.2 µg/m³
  • PM10: 4.8 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 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: 4.48 µg/m³
  • PM10: 5.15 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.1 µg/m³
  • PM10: 5.93 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.63 µg/m³
  • PM10: 6.6 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.96 µg/m³
  • PM10: 7.06 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.18 µg/m³
  • PM10: 7.4 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.2 µg/m³
  • PM10: 7.53 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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