Air Quality in Port Huron, United States
Windy
25.5°C · 62.9% humidity
25.5°
Feels 25.5°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Port Huron's air quality — share it
AQI Forecast
Calibrated
72
1pm
72
72
40
4pm
49
56
60
7pm
64
65
68
10pm
69
70
70
1am
71
71
73
4am
81
101
101
7am
81
71
71
10am
71
72
Station readings
21h ago
AQI 93
PM2.5 32.1 µg/m³ · 21h ago
CAMS model
adj +47
25
25
25
25
25
25
25
25
24
25
25
25
25
25
25
27
34
54
54
34
24
24
24
25
Air Quality Index Trend
7h · 1 stnPort Huron's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
62.9%
Humidity
53.7 km/h
Wind NNE
1014.4 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.59 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Port Huron?
Temperature & Precipitation
PM2.5 Trend
7h · 1 stationPM2.59.59 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX9.4
Very High
Station readings (2 stations within 25 km)
9.59
Median
9.95
Average
9.1
Low
10.8
High
PM2.5 µg/m³ · Model: 12.6 · Bias: +3.0
What is the 7-day forecast for Port Huron?
07-21
25.5° 20.9°
5.44 mm
07-22
24.1° 19.3°
0.25 mm
07-23
22.5° 15.7°
0.13 mm
07-24
22.8° 15.8°
0.06 mm
07-25
20.9° 15.7°
10.5 mm
07-26
27.2° 16.8°
0.13 mm
07-27
28.2° 21.2°
0.25 mm
Both models agree
Avg diff: 3.6°C
Where are air quality stations near Port Huron?
29
Sarnia, Ontario, Canada
45
Port Huron, Michigan, USA
31
Port Huron, Michigan, USA
9
Port Huron, Michigan, USA
What cities are near Port Huron?
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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 2026-07-21T20:11 UTC.