Hourly Weather | Today Monday, September 21, 2026
Wilmington, Delaware
3 PM
Cloudy Weather
73°
Feels Like 73°
17
Humidity: 59%
UV Index: 1
Wind: 8 mph
4 PM
Cloudy Weather
72°
Feels Like 72°
22
Humidity: 63%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
72°
Feels Like 68°
35
Humidity: 67%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
70°
Feels Like 66°
38
Humidity: 71%
UV Index: 0
Wind: 8 mph
7 PM
Rainy Weather
66°
Feels Like 63°
42
Humidity: 75%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
66°
Feels Like 63°
30
Humidity: 81%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
64°
Feels Like 63°
25
Humidity: 85%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
64°
Feels Like 63°
25
Humidity: 85%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
64°
Feels Like 63°
25
Humidity: 87%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.97 µg/m³
  • PM10: 6.86 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.2 µg/m³
  • PM10: 7.12 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.09 µg/m³
  • PM10: 7.14 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.18 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: 5.5 µg/m³
  • PM10: 6.85 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.81 µg/m³
  • PM10: 6.68 µg/m³
  • O3: 0.037 ppm
  • NO2: 3 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.17 µg/m³
  • PM10: 6.67 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.52 µg/m³
  • PM10: 6.35 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.99 µg/m³
  • PM10: 5.92 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 5.53 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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