CHICAGO — Mainly cloudy Friday with scattered rain and thunderstorms. A Beach Hazards Statement is issued through Saturday afternoon. Winds: NE 5-10 G20. High: 77/71.

Partly cloudy tonight. Winds: NNE 10-15 G25. Low: 65.

Saturday Forecast: Mainly sunny. Winds: NE 10-15 mph. High: 77/73.