Air Quality in Port Huron, United States

Windy
19.3°C · 59.2% humidity
19.3°
Feels 19.3°
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
54 5pm
54
54
53 8pm
54
54
54 11pm
52
52
54 2am
54
61
81 5am
81
81
81 8am
52
52
52 11am
51
52
52 2pm
52
52
Station readings
55
55
58
62
CAMS model adj +27
27
27
27
27
27
27
27
25
25
27
27
34
54
54
54
54
25
25
25
24
25
25
25
25
AD 728×90

Air Quality Index Trend

28h · 1 stn

Port 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.

59.2%
Humidity
67.3 km/h
Wind NNE
1017.0 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
53
13.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Port Huron?

Temperature & Precipitation

PM2.5 Trend

28h · 1 station
PM2.513.0 µg/m³ ✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (2 stations within 25 km)
13.0
Median
13.0
Average
12.0
Low
14.0
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -6.5

What is the 7-day forecast for Port Huron?

08-03
24.9° 19.3°
0.25 mm
08-04
33.0° 16.2°
0.13 mm
08-05
33.1° 14.4°
0.38 mm
08-06
30.8° 19.1°
11.88 mm
08-07
31.3° 14.1°
2.25 mm
08-08
36.3° 17.2°
4.75 mm
08-09
35.4° 22.0°
Both models agree Avg diff: 4.4°C

Where are air quality stations near Port Huron?

55
Sarnia, Ontario, Canada
2.1 km PM2.5: 14.0 µg/m³
14
Sarnia, Ontario, Canada
2.1 km PM2.5: 3.4 µg/m³
42
Sarnia, Ontario, Canada
2.1 km PM2.5: 10.1 µg/m³
58
Sarnia, Ontario, Canada
2.1 km PM2.5: 15.4 µg/m³
42
Sarnia, Ontario, Canada
2.1 km PM2.5: 10.1 µg/m³
62
Sarnia, Ontario, Canada
2.1 km PM2.5: 17.3 µg/m³
69
Port Huron, Michigan, USA
3.2 km PM2.5: 20.7 µg/m³

What cities are near Port Huron?

53 Sarnia 31 Mount Clemens 31 Clinton Township 31 Shelby 59 Saint Clair Shores 42 Chatham 38 Strathroy 42 Sterling Heights 60 Roseville 34 Rochester Hills
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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 2026-08-08T00:41 UTC.