Air Quality in Waterloo, United States

Partly Cloudy
14.5°C · 62.9% humidity
14.5°
Feels 14.5°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
24 9pm
24
24
26 12am
25
25
25 3am
27
27
34 6am
34
25
25 9am
24
24
24 12pm
24
24
24 3pm
24
24
24 6pm
24
25
AD 728×90

Air Quality Index Trend

20h · 1 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.

62.9%
Humidity
35.5 km/h
Wind SE
1011.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
26
6.15 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Waterloo?

Temperature & Precipitation

PM2.5 Trend

20h · 1 station
PM2.56.15 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250

What is the 7-day forecast for Waterloo?

06-09
30.5° 14.5°
06-10
25.2° 16.8°
6.94 mm
06-11
28.8° 19.3°
06-12
27.1° 20.2°
2.31 mm
06-13
27.3° 22.6°
0.94 mm
06-14
29.7° 14.5°
1.13 mm
06-15
28.5° 23.3°
0.75 mm
Both models agree Avg diff: 5.8°C

Where are air quality stations near Waterloo?

46
Water Tower, Waterloo, Iowa, USA
2.4 km PM2.5: 11.0 µg/m³
42
Water Tower, Waterloo, Iowa, USA
2.4 km PM2.5: 10.1 µg/m³
27
Water Tower, Waterloo, Iowa, USA
2.4 km PM2.5: 6.5 µg/m³

What cities are near Waterloo?

26 Cedar Falls 21 Marshalltown 38 Cedar Rapids 38 Marion 17 Mason City 26 North Liberty 25 Coralville 25 Iowa City 23 Ames 25 Altoona
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T05:01 UTC.