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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Sunday, April 26, 2026
Active Weather Warnings
Chattanooga, Tennessee
9 AM
Foggy Weather
64°
Feels Like 63°
0
Humidity: 82%
UV Index: 1
Wind: 7 mph
10 AM
Foggy Weather
66°
Feels Like 66°
0
Humidity: 75%
UV Index: 1
Wind: 7 mph
11 AM
Foggy Weather
70°
Feels Like 70°
0
Humidity: 68%
UV Index: 2
Wind: 8 mph
12 PM
Foggy Weather
73°
Feels Like 73°
0
Humidity: 59%
UV Index: 2
Wind: 8 mph
1 PM
Foggy Weather
75°
Feels Like 77°
0
Humidity: 51%
UV Index: 3
Wind: 8 mph
2 PM
Cloudy Weather
79°
Feels Like 82°
0
Humidity: 44%
UV Index: 5
Wind: 8 mph
3 PM
Cloudy Weather
81°
Feels Like 82°
0
Humidity: 40%
UV Index: 3
Wind: 8 mph
4 PM
Cloudy Weather
81°
Feels Like 82°
0
Humidity: 37%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
82°
Feels Like 82°
0
Humidity: 35%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 37%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
79°
Feels Like 77°
0
Humidity: 40%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 47%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
73°
Feels Like 70°
0
Humidity: 53%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 59%
UV Index: 0
Wind: 5 mph
11 PM
Night
66°
Feels Like 64°
0
Humidity: 65%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.12 µg/m³
  • PM10: 6.57 µg/m³
  • O3: 0.005 ppm
  • NO2: 1.8 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.52 µg/m³
  • PM10: 6.44 µg/m³
  • O3: 0.006 ppm
  • NO2: 1.8 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.42 µg/m³
  • PM10: 6.5 µg/m³
  • O3: 0.008 ppm
  • NO2: 1.7 ppb
  • SO2: 0 ppb
  • CO: 0.12 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: 3.09 µg/m³
  • PM10: 4.73 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.93 µg/m³
  • PM10: 4.18 µg/m³
  • O3: 0.034 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.

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

Pollutant Concentrations:

  • PM2.5: 2.85 µg/m³
  • PM10: 4.02 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.53 µg/m³
  • PM10: 3.5 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.17 µg/m³
  • PM10: 3 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.03 µg/m³
  • PM10: 2.85 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.09 µg/m³
  • PM10: 3.63 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.25 µg/m³
  • PM10: 5.12 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 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: 2.37 µg/m³
  • PM10: 6.53 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.46 µg/m³
  • PM10: 7.77 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.55 µg/m³
  • PM10: 8.9 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 9.84 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Chattanooga

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued April 26 at 5:11AM EDT until April 26 at 10:00AM EDT by NWS Morristown TN
Apr 26, 6:00 AM → Apr 26, 10:00 AM
WHAT: Visibility one quarter to one half of a mile in dense fog.

WHERE: Portions of southwest North Carolina and east Tennessee.

WHEN: Until 10 AM EDT this morning.

IMPACTS: Low visibility could make driving conditions hazardous.
+ Read More
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Updated: Apr 26, 7:13 AM Source: NWS Alert

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