Air Quality in Waterloo, United States
Partly Cloudy
25.0°C · 57.4% humidity
25.0°
Feels 25.0°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Waterloo's air quality — share it
AQI Forecast
25
1am
25
25
30
4am
29
28
27
7am
25
25
25
10am
24
24
24
1pm
24
24
24
4pm
24
24
24
7pm
24
25
27
10pm
27
27
Waterloo's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
57.4%
Humidity
20.0 km/h
Wind N
1019.0 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.1 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Waterloo?
Temperature & Precipitation
PM2.57.1 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
What is the 7-day forecast for Waterloo?
08-03
27.7° 16.4°
08-04
29.8° 14.4°
08-05
27.7° 11.6°
08-06
35.7° 16.7°
1.19 mm
08-07
27.7° 15.6°
0.56 mm
08-08
33.9° 16.2°
2.87 mm
08-09
35.0° 22.5°
0.06 mm
Both models agree
Avg diff: 4.0°C
What cities are near Waterloo?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T09:14 UTC.