What is the air quality in Waterloo today?

The current Air Quality Index (AQI) in Waterloo is 31 (Good). PM2.5 concentration is 7.4 µg/m³.

What is the temperature in Waterloo right now?

The current temperature in Waterloo is 4.5°C (feels like -3.2°C). Humidity is 89.3% and wind speed is 72.7 km/h.

Is it safe to go outside in Waterloo?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0 (Low).

Air Quality in Waterloo, United States

Rain

4.5°C · 89.3% humidity

4.5°

Feels -3.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

12 6pm

12 9pm

12 12am

12 3am

12 6am

12 9am

12 12pm

25 3pm

89.3%

Humidity

72.7 km/h

Wind NNE

1017.8 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Waterloo?

Temperature & Precipitation

PM2.57.4 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Waterloo?

04-09

16.5° 8.0°

16.5 mm

04-10

8.2° 2.2°

25.44 mm

04-11

13.2° 3.0°

04-12

15.6° 10.3°

9.13 mm

04-13

24.2° 17.3°

3.88 mm

04-14

22.7° 11.7°

6.87 mm

04-15

10.7° 1.1°

0.06 mm

Both models agree Avg diff: 7.0°C

Where are air quality stations near Waterloo?

Water Tower, Waterloo, Iowa, USA

2.4 km

What cities are near Waterloo?

31 Cedar Falls 31 Marshalltown 25 Cedar Rapids 25 Marion 25 Mason City 25 North Liberty 25 Coralville 25 Iowa City 31 Ames 31 Altoona

Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T21:22 UTC.