Welcome to the Reader's morning briefing for Thursday, February 18, 2016.

• Weather: The warm-up begins

The long-awaited weekend warm-up starts as we finally hit the 40 degrees. Expect a high of 40 and a low of 38. The only drawback is that it will be windy. [AccuWeather]

• City lawyer: Lucas Museum's future in Chicago is uncertain

Friends of the Parks' attempt to block the construction of the Lucas Museum of Narrative Art with a federal lawsuit just might work. The "uncertainty and delay" posed by the suit has museum officials considering other cities and sites for the project. The proposed museum site, on 17 acres of parkland between McCormick Place and Soldier Field, has been controversial since it was announced last year. [Tribune]

• Body of missing 23-year-old south-side man found by his mother

The body of Iaron Brooks, a Roseland resident who went missing in December, was found in Avalon Park on Tuesday after his mother, Bonnette Jernigan, got an anonymous tip about the location of the body. Jernigan believes her son was murdered. [CBS Chicago]

• Clinton rallies her supporters on the south side
  

Hillary Clinton addressed police reform, gun violence, equal pay for women, Governor Bruce Rauner, and more during a campaign rally at the Parkway Ballroom in Bronzeville Wednesday. She was introduced by Geneva Reed-Veal, Sandra Bland's mother, and was joined on stage by at least two mothers of teens killed in shootings. Mayor Rahm Emanuel, a vocal Clinton supporter and former Bill Clinton staffer, was notably absent. [DNAinfo Chicago]

• How did Chicago Public Schools end up in such a severe financial crisis?

Bloomberg Business investigates how CPS ended up on the brink of bankruptcy. Decades of mismanagement, deferred pension payments, and massive borrowing have left the schools billions of dollars in debt.
[Bloomberg]

• Tribune editor Gerould Kern retires, Bruce Dold to take over

Tribune editorial page editor Bruce Dold was named as the newspaper's new editor in chief on Wednesday after Gerould Kern announced his retirement, effective immediately. Kern, the paper's lead editor since 2008, and his plan to retire has been in the works for more than a year, a Tribune spokesman said. [Tribune]