Hourly Weather | Today Wednesday, August 12, 2026
Duluth, Minnesota
8 AM
Cloudy Weather
66°
Feels Like 68°
0
Humidity: 84%
UV Index: 1
Wind: 4 mph
9 AM
Cloudy Weather
72°
Feels Like 75°
0
Humidity: 72%
UV Index: 3
Wind: 4 mph
10 AM
Cloudy Weather
73°
Feels Like 81°
0
Humidity: 63%
UV Index: 4
Wind: 4 mph
11 AM
Cloudy Weather
77°
Feels Like 84°
0
Humidity: 57%
UV Index: 5
Wind: 5 mph
12 PM
Cloudy Weather
79°
Feels Like 86°
0
Humidity: 52%
UV Index: 6
Wind: 6 mph
1 PM
Cloudy Weather
81°
Feels Like 88°
0
Humidity: 48%
UV Index: 7
Wind: 6 mph
2 PM
Cloudy Weather
82°
Feels Like 88°
0
Humidity: 45%
UV Index: 6
Wind: 6 mph
3 PM
Cloudy Weather
82°
Feels Like 88°
0
Humidity: 44%
UV Index: 5
Wind: 6 mph
4 PM
Cloudy Weather
82°
Feels Like 86°
0
Humidity: 43%
UV Index: 4
Wind: 6 mph
5 PM
Cloudy Weather
82°
Feels Like 84°
0
Humidity: 43%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
81°
Feels Like 81°
0
Humidity: 48%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 52%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Weather
77°
Feels Like 75°
3
Humidity: 58%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
75°
Feels Like 73°
3
Humidity: 65%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
72°
Feels Like 72°
3
Humidity: 72%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
70°
Feels Like 70°
3
Humidity: 77%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.06 µg/m³
  • PM10: 4.56 µg/m³
  • O3: 0.011 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 4.39 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.67 µg/m³
  • PM10: 4.36 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.77 µg/m³
  • PM10: 4.2 µg/m³
  • O3: 0.035 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.

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

Pollutant Concentrations:

  • PM2.5: 5.49 µg/m³
  • PM10: 5.77 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.98 µg/m³
  • PM10: 8.23 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

2 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.33 µg/m³
  • PM10: 13.58 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

3 PM
66 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.6 µg/m³
  • PM10: 19.87 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

4 PM
73 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.88 µg/m³
  • PM10: 23.18 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

5 PM
78 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 24.96 µg/m³
  • PM10: 25.29 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

6 PM
79 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 25.77 µg/m³
  • PM10: 26.12 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

7 PM
80 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 25.89 µg/m³
  • PM10: 26.23 µg/m³
  • O3: 0.056 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

8 PM
79 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 25.53 µg/m³
  • PM10: 25.89 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

9 PM
77 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 24.77 µg/m³
  • PM10: 25.14 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

10 PM
75 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 23.47 µg/m³
  • PM10: 23.84 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

11 PM
70 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 21.44 µg/m³
  • PM10: 21.79 µg/m³
  • O3: 0.025 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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