Hourly Weather | Today Wednesday, March 18, 2026
Nashville, Tennessee
8 AM
Cloudy Weather
32°
Feels Like 21°
17
Humidity: 57%
UV Index: 0
Wind: 12 mph
9 AM
Cloudy Weather
36°
Feels Like 27°
17
Humidity: 51%
UV Index: 1
Wind: 12 mph
10 AM
Cloudy Weather
39°
Feels Like 30°
22
Humidity: 47%
UV Index: 1
Wind: 13 mph
11 AM
Cloudy Weather
43°
Feels Like 36°
38
Humidity: 44%
UV Index: 2
Wind: 14 mph
12 PM
Rainy Weather
46°
Feels Like 37°
42
Humidity: 41%
UV Index: 2
Wind: 15 mph
1 PM
Cloudy Weather
48°
Feels Like 43°
38
Humidity: 40%
UV Index: 2
Wind: 16 mph
2 PM
Cloudy Weather
52°
Feels Like 48°
0
Humidity: 37%
UV Index: 3
Wind: 15 mph
3 PM
Cloudy Weather
54°
Feels Like 50°
0
Humidity: 36%
UV Index: 3
Wind: 16 mph
4 PM
Cloudy Weather
55°
Feels Like 52°
0
Humidity: 37%
UV Index: 2
Wind: 15 mph
5 PM
Cloudy Weather
57°
Feels Like 54°
0
Humidity: 36%
UV Index: 2
Wind: 14 mph
6 PM
Cloudy Weather
55°
Feels Like 52°
0
Humidity: 41%
UV Index: 1
Wind: 10 mph
7 PM
Cloudy Night
52°
Feels Like 46°
0
Humidity: 48%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 54%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
46°
Feels Like 43°
0
Humidity: 60%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
45°
Feels Like 39°
0
Humidity: 63%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
45°
Feels Like 39°
0
Humidity: 66%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.75 µg/m³
  • PM10: 8.17 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 AM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.79 µg/m³
  • PM10: 8.12 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

10 AM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.83 µg/m³
  • PM10: 8 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.76 µg/m³
  • PM10: 7.32 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.82 µg/m³
  • PM10: 7.07 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.3 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.09 µg/m³
  • PM10: 7.23 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.2 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

2 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.12 µg/m³
  • PM10: 7.02 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.8 ppb
  • SO2: 1 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
58 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 6.2 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
60 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.06 µg/m³
  • PM10: 5.46 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
62 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.9 µg/m³
  • PM10: 5.31 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 5.43 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

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

Pollutant Concentrations:

  • PM2.5: 3.73 µg/m³
  • PM10: 5.62 µg/m³
  • O3: 0.053 ppm
  • NO2: 2 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 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: 3.7 µg/m³
  • PM10: 5.86 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.73 µg/m³
  • PM10: 6.14 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.79 µg/m³
  • PM10: 6.39 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 6.55 µg/m³
  • O3: 0.047 ppm
  • NO2: 2 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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