The Chicago area will see hot and humid conditions on Sunday, with the possibility of strong-to-severe thunderstorms coming in several waves.
An early wave of showers and storms rolled through the area Sunday morning, damaging trees and several buildings in the Joliet area as a suspected "microburst" erupted from the storm.
LIVE RADAR: Track storms as they approach Chicago area
Elsewhere, heavy rains led to more flooding, with some areas having received 4-to-5 inches of rain within a 24-hour period, according to the NBC 5 Storm Team.
More showers and storms are expected to arrive in the evening hours, with the Storm Prediction Center putting the region at a "slight" risk of severe weather, the second of five categories on the SPC's scale.
The main threat will still be damaging winds, though hail could also develop within the storms.
Those storms could be fueled by soaring temperatures, with afternoon highs likely rising into the low-to-mid 90s across the region. Dewpoints will also remain high, pushing the heat index north of 100 degrees, according to the NBC 5 Storm Team.
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Flash flooding also remains a concern, especially in areas north of Interstate 88 that have been hit hard by rain in recent days. A flood warning does remain in effect in southwestern McHenry County, but other areas that have seen heavy rainfall in recent days could see ponding on roadways and elevated water levels in creeks and streams, according to officials.
More showers and storms could develop on Monday, with the area once again at a "slight" risk of severe weather. Gusty winds, heavy rain and hail are all possible with storms that may fire up, according to the SPC.
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Those storms could follow a similar pattern to the ones that struck the area Sunday, with an initial wave in the late morning or early afternoon and then a second wave in the evening and even into Tuesday morning.
