With Monday’s high expected to top the 90º mark again, the city will have experienced a mini four-day heat wave more than six weeks earlier than last year. Four consecutive 90s did not occur in 2006 until the July 28-31 period, a string that eventually reached six days when it finally ended on Aug. 2.
The city’s official 91º high made Father’s Day 2007 the hottest here in a dozen years since the 93º reading on June 18, 1995. A few thunderstorms erupted during the hot and humid afternoon, which were actually triggered by the inland-moving lake breeze front. Rainfall was spotty and light with most areas that received rain getting less than one-tenth of an inch.
A cold front approaching the city Monday night should trigger a round of strong thunderstorms that promise much-needed rain, but also raise the specter of severe weather.
Cool weather will follow for midweek, but more heat should return next weekend.
--By Steve Kahn, WGN Weather Center Meteorologist
WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.
