For early June temperatures to be as cool as those predicted in coming days, a series of factors need to fall into place perfectly. Clouds must be extensive enough to block warming sunlight and winds can’t be allowed to transport air heated elsewhere into the area. At the same time, rainfall is critical because it mixes cool air down to earth’s surface. Each is a component of Chicago’s developing weather pattern as well as the fact Friday’s brisk NNE winds arrive here at the end of a 280 mile trek the length of Lake Michigan’s chilly water. What results are daytime temperatures which parallel those of late April. Saturday’s 61° high predicted for Midway Airport would rank as the site’s third coolest on June 10 since observations began there in 1928. The temperature downturn over the next three days is to produce an average temperature 23° cooler than the same period a year ago.
-Tom Skilling
WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.
