Today | Weather | Wednesday, June 24, 2026

Active Weather Warnings

Severe Thunderstorm Watch

Weather in Chicago, Illinois

06:02 PM

Now

70° F

Feels Like 66°

Precipitation 70 %

Wind 9 mph

UV Index (0 - 11+) 1

Humidity 78 %

Today

Day 70°

Night 63°

Precipitation 100 %

Wind 9 mph

UV Index (0 - 11+) 5

Chicago Weather Forecast Updated

6 minutes ago

Last updated on June 24, 2026 at 5:56 PM

Weather Forecast History

Last Year's Weather on This Day (June 24, 2025)

Day

93°

Night

70°

Wind

7 mph

UV Index

Precipitation

55 %

Air Quality in Chicago

NOW

37 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 6.94 µg/m³

PM₁₀ 7.04 µg/m³

O₃ 0.040 ppm

NO₂ 1.4 ppb

SO₂ 0.7 ppb

CO 0.10 ppm

NH₃ 0.73 µg/m³

NO 0.13 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 – 6.94 µg/m³

PM₁₀ – 7.04 µg/m³

O₃ – 77.72 µg/m³

NO₂ – 2.67 µg/m³

SO₂ – 1.71 µg/m³

CO – 114.1 µg/m³

NH₃ – 0.73 µg/m³

NO – 0.13 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Chicago

Severe Future Possible

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued June 24 at 5:04PM CDT until June 24 at 10:00PM CDT by NWS Chicago IL

Jun 24, 5:04 PM → Jun 24, 10:00 PM

THE NATIONAL WEATHER SERVICE HAS EXTENDED SEVERE THUNDERSTORM
WATCH 387 TO INCLUDE THE FOLLOWING AREAS UNTIL 10 PM CDT THIS
EVENING

IN ILLINOIS THIS WATCH INCLUDES 4 COUNTIES

IN NORTHEAST ILLINOIS

COOK DUPAGE KANKAKEE
WILL

THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS,
CAROL STREAM, CHICAGO, DOWNERS GROVE, EVANSTON, JOLIET, KANKAKEE,
LEMONT, LOMBARD, NAPERVILLE, OAK LAWN, ORLAND PARK, PARK FOREST,
SCHAUMBURG, WHEATON, AND WILMINGTON.

Updated: Jun 24, 5:56 PM Source: NWS Alert