Today | Weather | Tuesday, August 4, 2026

Weather in Peoria, Illinois

08:24 PM
Now
Cloudy Weather
81° F
Feels Like 81°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 0
Humidity 59 %
Today
Cloudy Night
Day 86°
Night 68°
Precipitation 24 %
Wind 5 mph

Peoria Weather Forecast Updated

17 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 4, 2025)
Stormy Weather

Day

82°

Night

64°

Wind

5 mph

Precipitation

40 %

Air Quality in Peoria

NOW
41 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 9.93 µg/m³
PM10 10.33 µg/m³
O3 0.040 ppm
NO2 1.7 ppb
SO2 0.7 ppb
CO 0.13 ppm
NH3 0.19 µg/m³
NO 0.02 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)
PM2.59.93 µg/m³
PM1010.33 µg/m³
O379.43 µg/m³
NO23.29 µg/m³
SO21.9 µg/m³
CO148.41 µg/m³
NH30.19 µg/m³
NO0.02 µg/m³