CHICAGO — Mostly sunny Thursday with cooler conditions lakeside. Winds: SSE 5-10 G15. High: 78/67.

Mostly cloudy tonight with a chance for rain. Winds: SW 10-15 G20. Low: 61.

FRIDAY FORECAST: Mostly cloudy Friday with rain and t-storms. Winds: NW 10-15. High: 71.

Full forecast details and more at the WGN Weather Center blog