Today | Weather | Monday, April 6, 2026

Active Weather Warnings

Flood Warning

Weather in Peoria, Illinois

06:06 AM

Now

39° F

Feels Like 36°

Precipitation 7 %

Wind 7 mph

Humidity 79 %

Today

Day 55°

Night 30°

Precipitation 2 %

Wind 12 mph

UV Index (0 - 11+) 6

Peoria Weather Forecast Updated

46 minutes ago

Last updated on April 06, 2026 at 5:20 AM

Weather Forecast History

Last Year's Weather on This Day (April 6, 2025)

Day

54°

Night

36°

Wind

7 mph

UV Index

Precipitation

25 %

Air Quality in Peoria

NOW

40 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 2.14 µg/m³

PM₁₀ 2.44 µg/m³

O₃ 0.044 ppm

NO₂ 0.9 ppb

SO₂ 0.2 ppb

CO 0.12 ppm

NH₃ 6.77 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 – 2.14 µg/m³

PM₁₀ – 2.44 µg/m³

O₃ – 85.44 µg/m³

NO₂ – 1.62 µg/m³

SO₂ – 0.64 µg/m³

CO – 138.28 µg/m³

NH₃ – 6.77 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Peoria

Severe Immediate Observed

Flood Warning

Flood Warning issued April 5 at 8:44PM CDT by NWS Lincoln IL

Apr 6, 11:48 PM → Apr 6, 1:00 PM

...The Flood Warning is extended for the following rivers in
Illinois...

Illinois River at Beardstown affecting Morgan, Schuyler, Brown
and Cass Counties.

Illinois River at Peoria affecting Woodford, Tazewell and Peoria
Counties.

Illinois River at Henry affecting Putnam and Marshall Counties.

...The Flood Warning continues for the following rivers in
Illinois...

Illinois River near Havana affecting Mason, Fulton and Cass
Counties.

.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.

WHAT: Minor flooding is forecast.

WHERE: Illinois River at Peoria.

WHEN: From Monday evening until further notice.

IMPACTS: At 18.0 feet, Some flooding begins to bottomland not
protected by levees.

ADDITIONAL DETAILS:
- At 7:45 PM CDT Sunday the stage was 15.6 feet.
- Forecast...The river is expected to rise above flood stage
late tomorrow evening and continue rising to a crest of 19.5
feet Wednesday evening.
- Flood stage is 18.0 feet.
- http://www.weather.gov/safety/flood

+ Read More

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov.

Updated: Apr 6, 5:20 AM Source: NWS Alert