Hourly Weather Forecast for Des Plaines, Illinois

Hourly Weather | Today › Monday, April 27, 2026

Active Weather Warnings

Wind Advisory

Des Plaines, Illinois

1 PM

64°

Feels Like 59°

Humidity: 72%

UV Index: 2

Wind: 14 mph

2 PM

64°

Feels Like 64°

Humidity: 75%

UV Index: 2

Wind: 13 mph

3 PM

64°

Feels Like 55°

Humidity: 89%

UV Index: 1

Wind: 16 mph

4 PM

70°

Feels Like 66°

Humidity: 75%

UV Index: 1

Wind: 17 mph

5 PM

68°

Feels Like 64°

Humidity: 79%

UV Index: 1

Wind: 18 mph

6 PM

68°

Feels Like 64°

Humidity: 73%

UV Index: 0

Wind: 20 mph

7 PM

68°

Feels Like 59°

Humidity: 75%

UV Index: 0

Wind: 20 mph

8 PM

64°

Feels Like 55°

Humidity: 84%

UV Index: 0

Wind: 17 mph

9 PM

64°

Feels Like 61°

Humidity: 85%

UV Index: 0

Wind: 14 mph

10 PM

64°

Feels Like 61°

Humidity: 85%

UV Index: 0

Wind: 12 mph

11 PM

64°

Feels Like 61°

Humidity: 85%

UV Index: 0

Wind: 12 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 PM

42 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.12 µg/m³
PM₁₀: 6.32 µg/m³
O₃: 0.045 ppm
NO₂: 1.2 ppb
SO₂: 0.6 ppb
CO: 0.13 ppm

Health Recommendations:

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

2 PM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.78 µg/m³
PM₁₀: 5.95 µg/m³
O₃: 0.044 ppm
NO₂: 1 ppb
SO₂: 0.5 ppb
CO: 0.13 ppm

Health Recommendations:

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

3 PM

39 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.06 µg/m³
PM₁₀: 5.17 µg/m³
O₃: 0.043 ppm
NO₂: 0.9 ppb
SO₂: 0.4 ppb
CO: 0.12 ppm

Health Recommendations:

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

4 PM

38 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.21 µg/m³
PM₁₀: 4.26 µg/m³
O₃: 0.041 ppm
NO₂: 0.9 ppb
SO₂: 0.3 ppb
CO: 0.12 ppm

Health Recommendations:

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

5 PM

38 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.67 µg/m³
PM₁₀: 3.71 µg/m³
O₃: 0.041 ppm
NO₂: 1 ppb
SO₂: 0.2 ppb
CO: 0.12 ppm

Health Recommendations:

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

6 PM

37 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.38 µg/m³
PM₁₀: 3.41 µg/m³
O₃: 0.040 ppm
NO₂: 1.1 ppb
SO₂: 0.2 ppb
CO: 0.12 ppm

Health Recommendations:

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

7 PM

36 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.93 µg/m³
PM₁₀: 2.96 µg/m³
O₃: 0.039 ppm
NO₂: 1.2 ppb
SO₂: 0.1 ppb
CO: 0.12 ppm

Health Recommendations:

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

8 PM

34 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.47 µg/m³
PM₁₀: 2.51 µg/m³
O₃: 0.037 ppm
NO₂: 1.3 ppb
SO₂: 0.1 ppb
CO: 0.12 ppm

Health Recommendations:

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

9 PM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.2 µg/m³
PM₁₀: 2.25 µg/m³
O₃: 0.034 ppm
NO₂: 1.5 ppb
SO₂: 0.2 ppb
CO: 0.12 ppm

Health Recommendations:

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

10 PM

28 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.03 µg/m³
PM₁₀: 2.1 µg/m³
O₃: 0.030 ppm
NO₂: 1.9 ppb
SO₂: 0.3 ppb
CO: 0.13 ppm

Health Recommendations:

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

11 PM

24 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 1.89 µg/m³
PM₁₀: 1.99 µg/m³
O₃: 0.026 ppm
NO₂: 2.1 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 Des Plaines

Moderate Expected Likely

Wind Advisory

Wind Advisory issued April 27 at 11:18AM CDT until April 27 at 4:00PM CDT by NWS Chicago IL

Apr 27, 12:00 PM → Apr 27, 4:00 PM

WHAT: Southeast winds 20 to 25 mph with gusts up to 50 mph
expected.

WHERE: Portions of north central and northeast Illinois and
northwest Indiana.

WHEN: Until 4 PM CDT this afternoon.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

ADDITIONAL DETAILS: The potential exists for brief localized
gusts up to 55 to 60 mph.

+ Read More

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

Updated: Apr 27, 11:49 AM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

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Weather Alerts and Warnings for Des Plaines

Wind Advisory

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