Today | Weather | Wednesday, November 4, 2026

Weather in Waukegan, Illinois

08:25 AM
Now
Rainy Weather
63° F
Feels Like 55°
Precipitation 65 %
Wind 15 mph
UV Index (0 - 11+) 0
Humidity 88 %
Today
Cloudy Weather
Day 64°
Night 50°
Precipitation 65 %
Wind 15 mph
UV Index (0 - 11+) 1

Waukegan Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 4, 2025)
Cloudy Night

Day

61°

Night

50°

Wind

12 mph

Precipitation

15 %

Air Quality in Waukegan

NOW
23 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.51 µg/m³
PM10 1.66 µg/m³
O3 0.025 ppm
NO2 2.3 ppb
SO2 0.4 ppb
CO 0.14 ppm
NH3 0.14 µg/m³
NO 0.01 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 – 1.51 µg/m³
PM10 – 1.66 µg/m³
O3 – 49.02 µg/m³
NO2 – 4.33 µg/m³
SO2 – 1.03 µg/m³
CO – 159.49 µg/m³
NH3 – 0.14 µg/m³
NO – 0.01 µg/m³