Watch CBS News

A look inside Chicago's nation-leading air quality monitoring system

Chicago has the largest air quality monitoring network in the country thanks to a partnership between the city, the University of Illinois Chicago, and local community groups.

May 26 (02:50)

Chicago weather: rain chances return the next few days

Chicago weather: rain chances return the next few days

Calls for action after off-duty CPD officer shoots man in Little Village

Calls for action after off-duty CPD officer shoots man in Little Village

CTA janitor Julian Mobley killed in stabbing at Damen Green Line station

CTA janitor Julian Mobley killed in stabbing at Damen Green Line station

Rahm Emanuel won't decide on potential '28 presidential run until after '26 midterms

Rahm Emanuel won't decide on potential '28 presidential run until after '26 midterms

CTA janitor killed in stabbing at Green Line station near United Center

CTA janitor killed in stabbing at Green Line station near United Center

Chicago weather: Chilly, clear evening

Chicago weather: Chilly, clear evening

Senior residents of Maywood apartments demand rent reduction after hot water outage

Senior residents of Maywood apartments demand rent reduction after hot water outage

Race for Congress: Daniel Biss vs John Elleson in Illinois’ 9th District

Race for Congress: Daniel Biss vs John Elleson in Illinois’ 9th District

Semillas plant store in Pilsen has become a hub for local vendors

Semillas plant store in Pilsen has become a hub for local vendors

Man charged in 5 south suburban video gambling burglaries, could be connected to over a dozen more

Man charged in 5 south suburban video gambling burglaries, could be connected to over a dozen more

CBS News Chicago producer returns woman's purse after she left it on Blue Line train

CBS News Chicago producer returns woman's purse after she left it on Blue Line train

Hurricane Isaias threatens Gulf Coast, landfall likely Friday or Saturday

Hurricane Isaias threatens Gulf Coast, landfall likely Friday or Saturday

Man charged in Lake Arlington attack

Man charged in Lake Arlington attack

CTA operator attacked, janitor stabbed and critically injured at Damen/Lake Green Line station

CTA operator attacked, janitor stabbed and critically injured at Damen/Lake Green Line station

Family holds visitation for 7-year-old Eddimar Hernandez Chacon, stabbed to death in Chatham

Family holds visitation for 7-year-old Eddimar Hernandez Chacon, stabbed to death in Chatham

White Sox fans shake off Game 3 loss, excited for Game 4 of ALDS vs. Guardians

White Sox fans shake off Game 3 loss, excited for Game 4 of ALDS vs. Guardians

Full interview with John Elleson, candidate for Illinois 9th Congressional District

Full interview with John Elleson, candidate for Illinois 9th Congressional District

Full interview with Daniel Biss, candidate for Illinois 9th Congressional District

Full interview with Daniel Biss, candidate for Illinois 9th Congressional District

School Spotlight: Wheaton North High School's theater department

School Spotlight: Wheaton North High School's theater department

Chicago weather: Cool, seasonable Thursday

Chicago weather: Cool, seasonable Thursday

Meet Simba and Garfield, Pets of the Week from Whisker Mission

Meet Simba and Garfield, Pets of the Week from Whisker Mission

President Trump visits Texas again ahead of midterm elections

President Trump visits Texas again ahead of midterm elections

Endeavor Health joins Chicago Breast Cancer Research Consortium

Endeavor Health joins Chicago Breast Cancer Research Consortium

Doors broken in attempted break-ins in Chicago Lawn

Doors broken in attempted break-ins in Chicago Lawn

CBS News 24/7

CBS News 24/7

CBS News Mornings

CBS News Baltimore

CBS News Baltimore

WJZ News 5am

CBS News Bay Area

CBS News Bay Area

The Late News with Sara Donchey

CBS News Boston

CBS News Boston

WBZ This Morning 5am

CBS News Chicago

CBS News Chicago

Latest Chicago News & Headlines

CBS News Colorado

CBS News Colorado

Latest Colorado News & Headlines

CBS News Detroit

CBS News Detroit

CBS News Detroit 5am

CBS News Los Angeles

CBS News Los Angeles

CBS News Los Angeles 11pm

CBS News Miami

CBS News Miami

CBS News Miami 5am

CBS News Minnesota

CBS News Minnesota

CBS News National

CBS News New York

CBS News New York

CBS News New York This Morning

CBS News Philadelphia

CBS News Philadelphia

CBS News Philadelphia 5am

CBS News Pittsburgh

CBS News Pittsburgh

KDKA-TV Morning News 5am

CBS News Sacramento

CBS News Sacramento

CBS13 News 11pm

CBS News Texas

CBS News Texas

CBS News Texas 10pm