Today | Weather | Saturday, May 16, 2026

Weather in Peoria, Illinois

10:12 AM
Now
Stormy Weather
70° F
Feels Like 66°
Precipitation 70 %
Wind 10 mph
UV Index (0 - 11+) 3
Humidity 86 %
Today
Stormy Weather
Day 79°
Night 66°
Precipitation 100 %
Wind 9 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

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.

Peoria Weather Forecast Updated

44 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (May 16, 2025)
Cloudy Weather

Day

86°

Night

52°

Wind

16 mph

UV Index

10

Precipitation

25 %

Air Quality in Peoria

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

Pollutant Concentrations:

PM2.5 7.65 µg/m³
PM10 8.16 µg/m³
O3 0.030 ppm
NO2 2.7 ppb
SO2 0.4 ppb
CO 0.13 ppm
NH3 6.55 µg/m³
NO 0.43 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)
PM2.57.65 µg/m³
PM108.16 µg/m³
O359.45 µg/m³
NO25.07 µg/m³
SO21 µg/m³
CO149.02 µg/m³
NH36.55 µg/m³
NO0.43 µg/m³