Hourly Weather | Today › Wednesday, October 28, 2026
Decatur, Alabama
11 AM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 49%
UV Index: 3
Wind: 6 mph
12 PM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 43%
UV Index: 4
Wind: 7 mph
1 PM
Cloudy Weather
72°
Feels Like 75°
0
Humidity: 37%
UV Index: 4
Wind: 7 mph
2 PM
Cloudy Weather
75°
Feels Like 77°
0
Humidity: 33%
UV Index: 4
Wind: 7 mph
3 PM
Cloudy Weather
75°
Feels Like 77°
0
Humidity: 31%
UV Index: 3
Wind: 6 mph
4 PM
Cloudy Weather
73°
Feels Like 75°
0
Humidity: 33%
UV Index: 2
Wind: 6 mph
5 PM
Cloudy Weather
72°
Feels Like 72°
0
Humidity: 36%
UV Index: 1
Wind: 6 mph
6 PM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 47%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 58%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
59°
Feels Like 59°
0
Humidity: 67%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 76%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 82%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 88%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 8.89 µg/m³
  • PM10: 11.58 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.5 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

12 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.13 µg/m³
  • PM10: 11.8 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.2 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 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: 9.83 µg/m³
  • PM10: 12.5 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.8 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.32 µg/m³
  • PM10: 10.04 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.1 ppb
  • SO2: 1.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.22 µg/m³
  • PM10: 8.55 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.8 ppb
  • SO2: 1.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.87 µg/m³
  • PM10: 8.14 µg/m³
  • O3: 0.060 ppm
  • NO2: 1 ppb
  • SO2: 1.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.94 µg/m³
  • PM10: 8.31 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.6 ppb
  • SO2: 1.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.18 µg/m³
  • PM10: 8.7 µg/m³
  • O3: 0.045 ppm
  • NO2: 3 ppb
  • SO2: 1.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.38 µg/m³
  • PM10: 9.03 µg/m³
  • O3: 0.038 ppm
  • NO2: 4.4 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 PM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.41 µg/m³
  • PM10: 9.19 µg/m³
  • O3: 0.032 ppm
  • NO2: 6.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.57 µg/m³
  • PM10: 9.56 µg/m³
  • O3: 0.026 ppm
  • NO2: 7.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.82 µg/m³
  • PM10: 10.02 µg/m³
  • O3: 0.023 ppm
  • NO2: 8.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.06 µg/m³
  • PM10: 10.4 µg/m³
  • O3: 0.020 ppm
  • NO2: 8.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

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