CHICAGO — Mainly cloudy Friday with a 30 percent chance of rain and cooler lakeside. Winds: SE 5-10. High: 78/74.

Mostly cloudy tonight. Winds: SE 5-10. Low: 60.

Saturday Forecast: Mostly sunny, isolated shower, cooler lakeside. Winds: ESE 5-10 G15. High: 79/75.

Full forecast details and more at the WGN Weather Center blog