Chicago’s Air Quality Just Hit Historically Dangerous Levels. When Will The Smoke Clear? 14%
By Rory Quealy23%
7/16/2026, 4:46:37 PM
BS Summary: This article contains 18 faulty reasoning types, including Ambiguity (Equivocation), Availability Heuristic, and Indoctrination, with Negativity Bias as the most egregious example at 23.5% saturation with 174 hits. Analysis detected 1,109 faulty-reasoning hits from 741 analyzed words, generating a BS Score of 30.2% and a BS Rank of 14% (18,982 of 21,887 articles). This article is better (less manipulative) than 86.70% of the article peer group.
CHICAGO — Cook County saw record-breaking levels of unhealthy air quality Thursday as smoke from wildfires in Canada and Minnesota blanketed the area, prompting the city to cancel outdoor activities and urge residents to stay indoors.
Chicago’s air quality reached hazardous levels Thursday, hitting an air quality index of 638 on a scale of 500, according to the Environmental Protection Agency.
The federal agency’s models suggest that smoke won’t “significantly decrease” until between mid-morning and mid-afternoon on Friday.
It forecast the city’s air quality to remain unhealthy on Friday, with an air quality index between 151 and 200.
Sensitive groups, including children, the elderly and those with lung disease like asthma, should avoid long or intense outdoor activities and move indoors if possible, while everyone else should reduce long or intense activities outside on Friday, according to the agency.
Those who must be outside are encouraged to wear a proper-fitting N95 or KN95 mask.
As of late this afternoon, parts of the area are experiencing very unhealthy to hazardous air quality, particularly the heart of the Chicago metro.
Remain indoors in A.C. as much as possible where worst air quality is being observed.
Visit https://t.co/BM1o3XYkLS .
#ILwx #INwx pic.twitter.com/lJooJSVNnz
- NWS Chicago (@NWSChicago) July 16, 2026
At one point Thursday, Chicago was the most polluted major city in the world, according to Swiss air quality company IQAir.
The Chicago Park District closed all outdoor beaches and pools on Thursday to allow lifeguards to seek shelter indoors.
The Park District moved its programming, including Summer Day Camp, indoors and canceled all outdoor events like movies in the parks.
The Department of Family and Support Services extended cooling center hours at the Garfield Center, 10 S.
Kedzie Ave, through 8 p.m.
Thursday and Friday, and opened the center from 9 a.m. to 5 p.m. on Saturday.
The Chicago Fire postponed its game against the Vancouver Whitecaps at Soldier Field due to the air quality.
Half Acre Beer Company, 2050 W.
Balmoral Ave, closed Thursday afternoon due to smoke, while Avondale’s Lake Effect Brewing Company invited Chicagoans in for a respite from the pollution.
Ricky Castro, a meteorologist with the National Weather Service’s Chicago office, said air quality is expected to remain in the very unhealthy to hazardous range through Thursday evening, and may worsen in Chicago’s inland suburbs as a lake-breeze boundary pushes smoke further west.
He said air quality is expected to improve somewhat on Friday, shifting to unhealthy, but that it’s unclear how long unhealthy conditions may last.
“The forecast for tomorrow is unhealthy, which is a bigger concern for sensitive groups, but exact timing, that is really not something that we could say with any more specificity than that,” Castro said.
Pedestrians, some donning face masks, walk along Michigan Avenue in the Loop as a smoky haze lingers in the skies above Chicago on July 16, 2026 as smoke from Canadian wildfires make for “unhealthy” air quality.
Credit: Ash Lane for Block Club Chicago
Castro said there could be some scattered showers and thunderstorms in Chicago Friday from midday to afternoon, which could help improve air quality by lowering particulate matter pollutants.
He said winds above the surface on Friday may also blow the smoke north and east.
But he said a Saturday cold front could pull the plume back toward the city, keeping it there into Sunday if widespread smoke remains northeast of Chicago.
He said forecasts are also dependent on any changes in the wildfires that continue to blaze in northern Minnesota and Ontario, and that model guidance is limited, making longer-range smoke predictions uncertain.
“Given the proximity of the smoke, it’s possible that some issues happen over the weekend,” Castro said.
“We just can’t say for sure yet on the extent and what areas.”
Castro recommends that Chicagoans check Airnow.gov , where they can enter their ZIP code for precise, hourly air quality updates.
A smoky haze lingers in the skies above Chicago in the Loop on July 16, 2026 as smoke from Canadian wildfires make for “unhealthy” air quality.
Credit: Ash Lane for Block Club Chicago
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