Today | Weather | Tuesday, March 17, 2026

Active Weather Warnings

Special Weather Statement

Weather in Peoria, Illinois

02:22 AM

Now

12° F

Feels Like 0°

Precipitation 0 %

Wind 10 mph

Humidity 77 %

Today

Day 28°

Night 25°

Precipitation 25 %

Wind 8 mph

UV Index (0 - 11+) 4

FROST FORECAST

Overnight Frost 2 AM – 9 AM

Peoria Weather Forecast Updated

Last updated on March 17, 2026 at 1:18 AM

Weather Forecast History

Last Year's Weather on This Day (March 17, 2025)

Day

61°

Night

43°

Wind

16 mph

UV Index

Precipitation

0 %

Air Quality in Peoria

NOW

49 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 1.24 µg/m³

PM₁₀ 1.43 µg/m³

O₃ 0.052 ppm

NO₂ 0.6 ppb

SO₂ 0.3 ppb

CO 0.14 ppm

NH₃ 0.94 µg/m³

NO 0 µg/m³

PM_2.5 – 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)

PM_2.5 – 1.24 µg/m³

PM₁₀ – 1.43 µg/m³

O₃ – 102.95 µg/m³

NO₂ – 1.17 µg/m³

SO₂ – 0.81 µg/m³

CO – 157.38 µg/m³

NH₃ – 0.94 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Peoria

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued March 17 at 12:07AM CDT by NWS Lincoln IL

Mar 17, 12:07 AM → Mar 17, 6:00 AM

West to northwest winds gusting 25 to 35 mph early overnight will
gradually diminish with gusts of 20 to 25 mph by 6 AM. A few
lingering bands of light snow showers and flurries will also diminish
during overnight. However, some slippery stretches of roads
especially in rural areas from Canton to Bloomington northward, will
continue overnight from lingering icy and snow covered roads. Parts
of I-74 north of Galesburg up to Woodhull is currently closed, and
parts of I-39 between El Paso and Wenona has some travel impacts.

Updated: Mar 17, 1:18 AM Source: NWS Alert