Forecast: Isolated showers; patchy fog late

OVERNIGHT: A good deal of cloudiness, with isolated showers and perhaps a thunderstorm early. Patchy fog late, especially near Lake Michigan. Light northeast winds under 10 mph. Low: 59.

Wednesday is likely to begin very similar to the way Tuesday opened, with a fair amount of cloud coverage and potentially some fog in lakeside areas. A Dense Fog Advisory is in effect Illinois and Indiana nearshore from Winthrop Harbor to Michigan City, IN until 1 p.m. Wednesday afternoon. 

Areas away from the lake will see more sunshine emerge following early clouds with another warm day expected as highs in those locations top out in the lower 80s for a third day in a row. Highs near the lake will remain cool, only reaching the lower to middle 60s setting up another impressive temperature spread across the area.  

Modest instability in the atmosphere due to the proximity of an upper-level low pressure system south and east of Chicago will at least present a modest chance of seeing a shower or perhaps an isolated thunderstorm. Most of the metro area will remain dry, with rainfall coverage limited to mainly areas well south/southwest of Chicago.

May’s warming trend