City in Illinois

Chicago Weather Forecast

Chicago weather: 58°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.

🌙 58°F now🕔 3:36 AM local📅 Best: May, June, August, September and October👥 2.7 million

Risk assessment for Chicago

Derived from the current forecast window - not an official warning.

Fire weather7.3

10 dry days, 0 days above 90°F and humidity at 89%. Hot, dry and windy together is what drives fire spread.

Airborne particulates1.8

Light haze overhead right now. Aerosol readings cannot separate wildfire smoke from dust, so treat this as a haze signal, not a fire confirmation.

Air quality and pollen in Chicago

50
Good
Air quality is satisfactory for everyone.
PM2.513.4 µg/m³
PM1013.5 µg/m³
Ozone43 µg/m³
NO₂33.9 µg/m³
UV index0 · Low
Airborne hazeLight haze

Air quality: Open-Meteo (CAMS). US AQI scale.

Health and safety today

Skin and UVNo protection needed for most skin types.
GeneralConditions are comfortable for most people, including children and older adults, with normal clothing.

Active alerts for Chicago

⚠️Mon, Aug 31: heavy rain, 1,3 in. Flooding and delays possible.

Derived from the forecast. No official alert feed is wired for this country yet.

See the Chicago forecast by time range

Chicago weather - more answers

Explore Chicago

Every topic we hold for this place, and the same topic for the places around it.

Weather for related places

Frequently asked questions

Where is Chicago?

Chicago is a city in Illinois. Its coordinates are 41.8781, -87.6298. It lies in North America.

What is the weather like in Chicago right now?

It is currently 58°F (14°C) with clear. Humidity is 89% and wind is 4 mph.

When is the best time to visit Chicago?

May, June, August, September and October offer the most comfortable conditions in Chicago, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.

What time zone is Chicago in?

Chicago observes America/Chicago (UTC-05:00). The local time is 3:36 AM.

How many people live in Chicago?

Chicago has a population of approximately 2.7 million.

What is the nearest airport to Chicago?

The closest airports are O'Hare International Airport (ORD), 16 mi away.

What are the top things to do in Chicago?

Popular options include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.

What places are in Chicago?

Chicago covers 5 places in this atlas, including O'Hare International Airport, The Loop, Wicker Park, ZIP Code 60601 and Area Code 312.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts.
Forecast and observationsOpen-Meteo (ECMWF and national models).
Air quality and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Climate averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Weather Service.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated August 25, 2026 at 3:36 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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