Storms poured more than five inches of rain on some parts of the Chicago area Saturday as inclement weather brought damaging winds and heavy downpours.
Most counties across northern Illinois were under a Flash Flood Watch through late Saturday, with flooding expected along portions of the Des Plaines, DuPage and Fox Rivers, the NWS said.
The Chicago Riverwalk flooded as well, with water levels overtaking the downtown tourist hotspot.
Across the Chicago area, several inches of rain fell by Saturday afternoon, with storms continuing throughout the night into early Sunday.
O'Hare Airport recorded 2.06 inches between Friday night and Saturday afternoon, shattering the record of 1.15 inches set in 2003. By Sunday morning, O'Hare saw 4.39 inches of rain, making it the wettest October day in recorded history, according to the NWS.
Midway Airport saw 5.19 inches by 1 a.m. Sunday, while 6.30 inches of rain fell in the McKinley Park neighborhood on Chicago's Southwest Side.
Suburban Lisle in DuPage County saw 5.19 inches of rain, while Naperville saw more than 4 inches, prompting officials to close several roads due to high standing water.
Naperville residents were asked to avoid the following areas: Julian between Porter and Prairie; Prairie between Columbia and Julian; North Aurora at the via duct; 5th Avenue just west of Mill Street; Bunker Circle at Country Lakes; Royal St. George at Burning Tree; Olesen south of Whirlaway; Fairway at Inland Circle; and Naper Boulevard just north of 75th Street.
In Lombard, a portion northbound Finley Road was closed with more than two feet of water, the NWS reported. North suburban Deer Park saw a foot of standing water on Lake-Cook Road at Deer Park Boulevard by 8:45 p.m. Saturday.
Heavy rains and high winds caused damage in portions of the area that were under a Tornado Watch Saturday evening, with multiple downed trees and power lines reported in Kendall, LaSalle and Livingston counties.
In northwest Indiana, a portion of eastbound I-80/94 near Hammond was flooded in a construction zone near mile marker 3.5, with reports of nine inches of water in the left lane.
A strong cold front shifted across the Chicago area Saturday night, with lingering showers expected to pass early Sunday morning before clouds break for partial sun by the afternoon, though winds will still be strong. The area also will see an elevated frost risk Sunday night and Monday morning.
Sunday will be a much cooler today as highs dip into the upper-50s, dropping even cooler in the afternoon.
Sunshine returns for the start of the work week as temps rise back into the 60s and near 70 degrees by mid-week.