The heat is on

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Chicago’s high temperatures will be in the 90s for the next five days, and only moderate cooling is expected in the days following that. Additionally, the cooling influence of Lake Michigan will be conspicuously absent in coming days, except possibly on the immediate lakefront. Brisk southwest winds (during the day) will be the rule at least through Wednesday.

Scattered showers and thunderstorms spread across the Chicago area from the northwest Thursday night. O’Hare International Airport reported 0.06 inch of rain (the first measurable rain there since 0.53 inch on May 26), but many locations registered nothing.

No additional rain is expected until late Wednesday, at which time a cold front is forecast to approach from the northwest. The frontal boundary might trigger thunderstorms as it approaches.