CHICAGO — Mostly cloudy Wednesday morning with a 20 percent chance of showers and decreasing clouds. Winds: NE 5-10. High: 68.

Mostly clear tonight. Winds: NNE 5-10. Low: 52.

Thursday, September 14
HIGH: 72 LOW: 54

A bit of a chilly start away from the lake but nice sunshine and highs warming to the comfortable low 70s in the afternoon. High 72. 

Friday, September 15
HIGH: 77 LOW: 57

Mostly sunny & a bit warmer as highs get into the mid to upper 70s. Mostly clear overnight. High 77, lows upper 50s. 

Saturday, September 16
HIGH: 78 LOW: 59

Lots of sunshine and temps in the mid to upper 70s, a bit cooler by the lake. High 78. Partly cloudy overnight. Low 58. 

Sunday, September 17
HIGH: 73 LOW: 58

Slight chance of showers in the morning. Partly sunny & a bit cooler– especially by the lake. High 73, Low 59.

Full forecast details and more at the WGN Weather Center blog