Hot weather moving out of Chicago, cooler weather moving in, in the wake of a cold frontal passage 

Tuesday evening temperatures:

How much cooler than the same period Monday? 

Tuesday’s climate data 

While it was cooler Tuesday, temperatures still finished modestly above normal. July sunshine continues to disappoint, running below normal. 

No sign of hot weather for the foreseeable future as a string of cooler than normal days settles in. 

Heat relief ahead for much of the Midwest and Eastern U.S. 

223 million residents sweltered in 90 degree or hotter heat Tuesday, by Thursday that number will drop to less than 124 million. 

Tuesday high temperatures 

Wednesday forecast high temperatures 

Thursday forecast  high temperatures

Intense heat to develop over the Pacific NW and western Canada while a large chunk of the Plains to see significant heat relief and temperatures below normal with no sign of 90s in the Chicago area the remainder of July.   

FORECAST TEMPERATURE DEPARTURES THROUGH JULY 22 

FORECAST TEMPERATURE DEPARTURES JULY 23 THROUGH 29