CHICAGO — Cool conditions with temperatures near 60 Tuesday. Mostly sunny, Winds: W 5-15. High: 60.

Frost Advisory issued until 8 a.m. (all counties except central & northern cook and lake IL).

Mostly clear tonight, patchy frost possible. Winds: W 0-5. Low: 40.

Wednesday Forecast: Increasing Clouds, late day rain/storms, W 0-5. High: 63.

Full forecast details and more at the WGN Weather Center blog