What is the air quality in Waterloo today?

The current Air Quality Index (AQI) in Waterloo is 27 (Good). PM2.5 concentration is 6.5 µg/m³.

What is the temperature in Waterloo right now?

The current temperature in Waterloo is 11.9°C (feels like 11.9°C). Humidity is 73.4% and wind speed is 43.9 km/h.

Is it safe to go outside in Waterloo?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Waterloo, United States

Windy

11.9°C · 73.4% humidity

11.9°

Feels 11.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Waterloo →

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.

73.4%

Humidity

43.9 km/h

Wind ESE

1021.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.5 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Waterloo?

Temperature & Precipitation

PM2.56.5 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Both models agree Avg diff: 5.3°C

What cities are near Waterloo?

27 Cedar Falls 27 Marshalltown 34 Cedar Rapids 34 Marion 27 Mason City 34 North Liberty 34 Coralville 34 Iowa City 27 Ames 27 Altoona

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T21:44 UTC.