Air Quality in Ann Arbor, United States

Clear
28.9°C · 47.4% humidity
28.9°
Feels 31.1°
84
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
9 stations

Nearby Monitoring Stations

AQI Forecast
25 10am
25
25
84 1pm
67
55
47 4pm
41
36
33 7pm
31
29
28 10pm
27
27
26 1am
26
28
34 4am
54
54
54 7am
54
25
AD 728×90

Air Quality Index Trend

46h · 12 stn

Ann Arbor's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Ann Arbor is 1.8× the WHO 24-hour guideline of 15 µg/m³.

47.4%
Humidity
28.9 km/h
Wind ENE
1013.4 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
84
27.61 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Ann Arbor?

Temperature & Precipitation

PM2.5 Trend

46h · 12 stations
PM2.527.61 µg/m³ ×1.8 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (9 stations within 25 km)
27.61
Median
27.38
Average
23.09
Low
30.32
High
PM2.5 µg/m³ · Model: 12.6 · Bias: -15.0

What is the 7-day forecast for Ann Arbor?

07-21
28.9° 21.4°
2.12 mm
07-22
26.1° 19.3°
07-23
22.6° 14.3°
2.56 mm
07-24
25.8° 14.3°
07-25
21.3° 16.1°
3.37 mm
07-26
28.1° 16.3°
1.31 mm
07-27
27.3° 18.3°
2.31 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Ann Arbor?

81
Ann Arbor City Hall
0.6 km PM2.5: 26.3 µg/m³
87
Fire Station 6
0.6 km PM2.5: 29.1 µg/m³
50
Ann Arbor Senior Center
1.8 km PM2.5: 11.9 µg/m³
86
Northside Community Center
2.4 km PM2.5: 28.9 µg/m³
80
Water Treatment Plant
2.7 km PM2.5: 26.0 µg/m³
81
Veterans Memorial Park, Ann Arbor MI
3.1 km PM2.5: 26.2 µg/m³
81
Buhr Park
4.2 km PM2.5: 26.5 µg/m³
77
Bryant Community Center
5.4 km PM2.5: 24.4 µg/m³
72
Sugarbush Park
5.5 km PM2.5: 22.0 µg/m³
82
Wastewater Treatment Plant
6.4 km PM2.5: 26.8 µg/m³

What cities are near Ann Arbor?

83 Ypsilanti 79 Westland 74 Romulus 78 Wayne 83 Novi 81 Livonia 82 Garden City 83 Inkster 80 Farmington Hills 80 Redford
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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 2026-07-21T17:13 UTC.