Today | Weather | Tuesday, June 9, 2026

Weather in Champaign, Illinois

06:51 PM
Now
Cloudy Weather
86° F
Feels Like 91°
Precipitation 47 %
Wind 8 mph
UV Index (0 - 11+) 1
Humidity 61 %
Today
Sunny with a Chance of Thunderstorms
Day 88°
Night 72°
Precipitation 55 %
Wind 9 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Champaign Weather Forecast Updated

36 minutes ago
Last updated on

Air Quality in Champaign

NOW
37 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.04 µg/m³
PM10 5.4 µg/m³
O3 0.040 ppm
NO2 1.2 ppb
SO2 1 ppb
CO 0.11 ppm
NH3 0.7 µg/m³
NO 0.2 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)
PM2.55.04 µg/m³
PM105.4 µg/m³
O378.93 µg/m³
NO22.23 µg/m³
SO22.53 µg/m³
CO120.85 µg/m³
NH30.7 µg/m³
NO0.2 µg/m³