Tuesday’s 91-deg official Chicago O’Hare high temp is the earliest temp that warm to occur in Chicago in 31 years. It just 1 degree shy of the 1982 record for the date. Our first 90 a year ago didn’t occur until May 19.
We set a new May record for the greatest “day to next” temp increase, surpassing the previous 49-degree two day temp increase set May 16-17, 1984.
Temps at the heart of the eastbound hot air mass headed this way for Tuesday have flirted with 100-deg today sections of Nebraska & Kansas.
A cold front moving through Tuesday night will do little beyond producing powerful ground-level winds. Temperatures are predicted to hold at unseasonably mild levels 18 degrees above normal overnight. The high is expected to be in the lower 80s Wednesday and the upper 70s Thursday.
A warm, humid weekend is ahead with prospects for thunderstorms on the rise, but likely to occur in clusters separated in time. Jet stream slicing through the warm, moist air mass raises prospects some storms could be active in what has been the quietest U.S. tornado season to date in nearly 60 years!