Today | Weather | Thursday, April 2, 2026

Active Weather Warnings

Wind Advisory

Weather in Chicago, Illinois

05:24 PM

Now

72° F

Feels Like 64°

Precipitation 53 %

Wind 21 mph

UV Index (0 - 11+) 1

Humidity 71 %

Today

Day 72°

Night 48°

Precipitation 100 %

Wind 15 mph

UV Index (0 - 11+) 2

Chicago Weather Forecast Updated

50 minutes ago

Last updated on April 02, 2026 at 4:33 PM

Weather Forecast History

Last Year's Weather on This Day (April 2, 2025)

Day

66°

Night

48°

Wind

15 mph

UV Index

Precipitation

100 %

Air Quality in Chicago

NOW

34 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 0.93 µg/m³

PM₁₀ 1 µg/m³

O₃ 0.036 ppm

NO₂ 0.8 ppb

SO₂ 0.2 ppb

CO 0.11 ppm

NH₃ 0.7 µg/m³

NO 0.05 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 – 0.93 µg/m³

PM₁₀ – 1 µg/m³

O₃ – 71.06 µg/m³

NO₂ – 1.5 µg/m³

SO₂ – 0.46 µg/m³

CO – 121.03 µg/m³

NH₃ – 0.7 µg/m³

NO – 0.05 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Chicago

Moderate Expected Likely

Wind Advisory

Wind Advisory issued April 2 at 10:36AM CDT until April 2 at 7:00PM CDT by NWS Chicago IL

Apr 2, 1:00 PM → Apr 2, 7:00 PM

WHAT: South winds 20 to 30 mph with gusts up to 45 mph expected.

WHERE: Portions of north central and northeast Illinois.

WHEN: Until 7 PM CDT this evening.

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

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

Updated: Apr 2, 4:33 PM Source: NWS Alert