NATO protesters are in for a threatening mixed bag of weather in Chicago.
Another scorcher lies ahead for the first part of the day with highs expected to reach 90 degrees. As protesters gathered around 7 a.m. Sunday at the Petrillo Music Shell, temperatures already passed 70.
NBC Chicago meteorologist Cheryl Scott is tracking thunderstorms developing later on as the city goes under a slight risk for severe weather, heavy rain, hail and strong winds.
The risk for isolated thunders begins in the afternoon and increases after 5 p.m. Showers and storms are expected around the Chicago area, and some could be strong.
The rain won't cool down summery temperatures, though. As clouds increase, Sunday afternoon highs could climb all the way to 92, according to the National Weather Service.
The second day of the NATO Summit should prove much cooler. Highs linger in the mid-60s for much of the day before falling to around 53 at night.