Air Quality in Duluth, United States

Windy
21.7°C · 70.2% humidity
21.7°
Feels 21.7°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
24 9am
24
24
37 12pm
33
32
59 3pm
69
85
86 6pm
147
67
67 9pm
66
66
66 12am
66
66
66 3am
66
66
83 6am
83
66
AD 728×90

Air Quality Index Trend

45h · 2 stn

Duluth's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

70.2%
Humidity
45.5 km/h
Wind ENE
1014.2 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
37
8.89 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Duluth?

Temperature & Precipitation

PM2.5 Trend

45h · 2 stations
PM2.58.89 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (5 stations within 25 km)
8.89
Median
9.99
Average
7.2
Low
12.44
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +0.8

What is the 7-day forecast for Duluth?

07-21
22.3° 18.2°
1.94 mm
07-22
22.6° 15.1°
0.81 mm
07-23
22.1° 15.6°
0.06 mm
07-24
24.5° 12.7°
4.12 mm
07-25
22.7° 14.8°
8.87 mm
07-26
22.0° 17.0°
7.31 mm
07-27
28.4° 15.5°
0.06 mm
Both models agree Avg diff: 3.8°C

Where are air quality stations near Duluth?

25
Duluth-WDSE, Minnesota, USA
4.1 km PM2.5: 6.0 µg/m³
52
BNSF Superior Depot
8.6 km PM2.5: 12.8 µg/m³
47
BNSF Taconite
13.2 km PM2.5: 11.2 µg/m³

What cities are near Duluth?

49 Superior 32 Hibbing 36 Forest Lake 36 Ham Lake 15 Andover 45 Lino Lakes 43 Ramsey 43 Elk River 43 Stillwater 43 Blaine
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:14 UTC.