CHICAGO — An Excessive Heat Warning remained Thursday night after dangerous conditions continued across the Chicago area.

Potential for record-high temperatures are expected, with a heat index even higher than Wednesday.

Temps will reach 100 degrees in most parts, with feel-like temps around 105-116 degrees. Mostly humid and sunny conditions are in the forecast along with a 20 percent storm chance.

The City of Chicago Office of Emergency Management and Communications is advising residents to stay indoors if possible and to be prepared for the hot weather.

Chicago cooling centers are open to help residents stay safe and cool.

CPS has activated its Heat Action Plan and has urged teachers to keep rooms cool by drawing shades and turning off unused computers. CPS will also hold recess and physical education indoors. 

Partly cloudy conditions Thursday night with a 20 percent storm chance. Winds: NNE 10-20 G20. Low: 71.

FRIDAY: More clouds than sun, hazy, continued humid but not nearly as warm with highs 15-20 degrees lower than Thursday’s record-breaking heat. Scattered showers/t-storms may impact 30% of the area later in the day. High: 83/upper 70s near the lake. 

FRIDAY NIGHT:  A lingering shower or thunderstorm in the evening possible otherwise becoming partly cloudy, cooler, less humid.  Low: 66.  

SATURDAY:  Partly sunny, breezy, markedly cooler, and much less humid. Northeast winds 10-20 mph create a 3–6-foot chop on Lake Michigan, making for dangerous swimming conditions. High: 76/near 70 lakeshore.  

SUNDAY: Becoming mostly sunny, a bit cool but eminently comfortable. High: 74/modestly cooler near the lake.   

Full forecast details and more at the WGN Weather Center blog