Frost Advisory Tonight

A frost advisory is in effect for all of northern Illinois tonight, and a freeze warning is out for Green and Rock counties in Wisconsin. Tonight could even be colder than last night because of clearer skies and lighter winds. Tender vegetation should be taken inside or covered tonight. The reason for the cold air is an area of high pressure with Canadian origin sitting over the Stateline. Temperatures tomorrow should reach the low to mid-60s with plenty of sunshine, and the strong north winds we had over the weekend should subside somewhat.  --TS