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

AQI Forecast
25 10pm
27
27
30 1am
29
28
27 4am
26
26
26 7am
24
24
24 10am
24
24
24 1pm
24
24
24 4pm
24
24
24 7pm
24
25
AD 728×90

Air Quality Index Trend

29h · 2 stn

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▲
30
7.1 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Waterloo?

Temperature & Precipitation

PM2.5 Trend

29h · 2 stations
PM2.57.1 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
AD 300×250

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

Where are air quality stations near Waterloo?

21
Water Tower, Waterloo, Iowa, USA
2.4 km PM2.5: 5.0 µg/m³
19
Water Tower, Waterloo, Iowa, USA
2.4 km PM2.5: 4.6 µg/m³

What cities are near Waterloo?

30 Cedar Falls 33 Marshalltown 43 Cedar Rapids 43 Marion 41 Mason City 10 North Liberty 10 Coralville 10 Iowa City 48 Ames 27 Altoona
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T06:30 UTC.