Hourly Weather Forecast for Aurora, Illinois

Hourly Weather | Today › Monday, April 27, 2026

Active Weather Warnings

Flood Warning

Aurora, Illinois

10 PM

63°

Feels Like 57°

Humidity: 90%

UV Index: 0

Wind: 12 mph

11 PM

63°

Feels Like 59°

Humidity: 88%

UV Index: 0

Wind: 12 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 PM

24 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 1.94 µg/m³
PM₁₀: 2.03 µg/m³
O₃: 0.026 ppm
NO₂: 2.2 ppb
SO₂: 0.4 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM

22 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 1.84 µg/m³
PM₁₀: 1.95 µg/m³
O₃: 0.024 ppm
NO₂: 2.2 ppb
SO₂: 0.4 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Aurora

Severe Immediate Observed

Flood Warning

Flood Warning issued April 27 at 8:44PM CDT until April 29 at 7:00PM CDT by NWS Chicago IL

Apr 27, 8:44 PM → Apr 29, 7:00 PM

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

Fox River at Montgomery affecting Kane and Kendall Counties.

Fox River at Algonquin Lock & Dam tailwater affecting Lake IL,
Kane and McHenry Counties.

WHAT: Minor flooding is forecast.

WHERE: Fox River from Red Gate Road in St. Charles downstream to
Millington, including the Montgomery gauge.

WHEN: Until Wednesday evening.

IMPACTS: At 13.5 feet, Low-lying parking lots at city hall and
Boy Scout Island are threatened in St. Charles. Fox River Trail is
threatened at St. Mary Park in St. Charles.

ADDITIONAL DETAILS:
- At 8:00 PM CDT Monday the stage was 13.5 feet.
- Forecast...The river is expected to remain relatively steady
near flood stage for the next few days.
- Flood stage is 13.5 feet.
- http://www.weather.gov/safety/flood

+ Read More

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Tuesday afternoon.

Updated: Apr 27, 9:22 PM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

Pollutant Concentrations:

Health Recommendations:

Pollutant Concentrations:

Health Recommendations:

Weather Alerts and Warnings for Aurora

Flood Warning

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