Today | Weather | Sunday, November 1, 2026

Weather in Waterloo, Iowa

10:32 PM
Now
Cloudy Weather
57° F
Feels Like 54°
Precipitation 7 %
Wind 12 mph
Humidity 85 %
Today
Cloudy Weather
Day 64°
Night 55°
Precipitation 25 %
Wind 12 mph

Waterloo Weather Forecast Updated

38 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 1, 2025)
Rainy Weather

Day

48°

Night

32°

Wind

8 mph

UV Index

1

Precipitation

40 %

Air Quality in Waterloo

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.78 µg/m³
PM10 7.04 µg/m³
O3 0.036 ppm
NO2 1.3 ppb
SO2 0.4 ppb
CO 0.14 ppm
NH3 0.2 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 6.78 µg/m³
PM10 – 7.04 µg/m³
O3 – 71.64 µg/m³
NO2 – 2.54 µg/m³
SO2 – 1.09 µg/m³
CO – 165.55 µg/m³
NH3 – 0.2 µg/m³
NO – 0 µg/m³