Today | Weather | Thursday, April 2, 2026
Active Weather Warnings

Weather in Chicago, Illinois

12:04 PM
Now
Cloudy Weather
57° F
Feels Like 48°
Precipitation 38 %
Wind 22 mph
UV Index (0 - 11+) 1
Humidity 82 %
Today
Stormy Weather
Day 68°
Night 46°
Precipitation 97 %
Wind 18 mph
UV Index (0 - 11+) 1

Chicago Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 2, 2025)
Stormy Weather

Day

66°

Night

48°

Wind

15 mph

UV Index

1

Precipitation

100 %

Air Quality in Chicago

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.29 µg/m³
PM10 1.72 µg/m³
O3 0.032 ppm
NO2 0.8 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 1.32 µg/m³
NO 0.11 µg/m³
PM2.5 – 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)
PM2.51.29 µg/m³
PM101.72 µg/m³
O363.64 µg/m³
NO21.59 µg/m³
SO20.62 µg/m³
CO123.14 µg/m³
NH31.32 µg/m³
NO0.11 µg/m³

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, 11:01 AM Source: NWS Alert