Sets of back-to-back daytime 60s have occurred in June—but not frequently. That makes an updated prediction of 60s both Friday and Saturday a bit unusual. The role of cloud cover, winds off the lake and the potential for several spells of precipitation have cut into expectations of daytime heating. Consecutive 60s aren’t unheard of this time of year. But, an average of only four Junes in ten produces days that cool.
Despite the 60s in our future, things could be much worse. June 5, 1894 hosted a daytime high of just 45°—the coldest June high temperature on record here since 1871.
The arrival of NE winds and the temperature drop in the wake of a back door (westward moving) cold front Wednesday Saturated the air by dropping temperatures to the dewpoint (the reading at which the air holds all the moisture it can). Fog and low clouds resulted for several hours.
-Tom Skilling
WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.
