Hourly Weather | Today Wednesday, May 20, 2026
Duluth, Minnesota
6 PM
Sunny Weather
52°
Feels Like 48°
0
Humidity: 50%
UV Index: 2
Wind: 10 mph
7 PM
Sunny Weather
50°
Feels Like 46°
0
Humidity: 52%
UV Index: 1
Wind: 10 mph
8 PM
Cloudy Weather
48°
Feels Like 43°
0
Humidity: 58%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Night
45°
Feels Like 39°
0
Humidity: 66%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
43°
Feels Like 37°
0
Humidity: 73%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
41°
Feels Like 36°
0
Humidity: 80%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.08 µg/m³
  • PM10: 1.21 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.15 µg/m³
  • PM10: 1.32 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.18 µg/m³
  • PM10: 1.42 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.23 µg/m³
  • PM10: 1.56 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.29 µg/m³
  • PM10: 1.69 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.29 µg/m³
  • PM10: 1.71 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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