Today | Weather | Monday, October 6, 2025

Weather in Chicago, Illinois

01:45 PM
Now
Cloudy Weather
82° F
Feels Like 86°
Precipitation 43 %
Wind 9 mph
UV Index (0 - 11+) 11
Humidity 59 %
Today
Sunny with a Chance of Thunderstorms
Day 84°
Night 61°
Precipitation 55 %
Wind 9 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Chicago Weather Forecast Updated

7 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (October 6, 2024)

Night

Day

75°

Night

55°

Wind

14 mph

Precipitation

1

Air quality in Chicago

NOW
45 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 7.40 µg/m³
PM10 8.39 µg/m³
O₃ 51.49 ppb
NO₂ 3.08 ppb
SO₂ 1.76 ppb
CO 158.84 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors