The heat is on.
Another round of sweltering temperatures is in store for the weekend, with the National Weather Service issuing an Excessive Heat Warning for the entire Chicago area including northwest Indiana.
The warning takes effect at 11 a.m. Friday morning and will remain in effect until 10 p.m. Saturday, according to the NWS.
The combination of high temperatures and high humidity levels will lead to dangerous conditions, forecasters warn.
Conditions Friday will be sunny, blazing hot and humid with highs in the mid to upper 90s, but humidity will make it feel like 100 to 110 degrees.
Friday night stays warm with overnight lows in the 70s inland and 80s in the city.
A few isolated thunderstorms will be possible Saturday afternoon, but heat and humidity will again make 90-degree temperatures feel like 105 to 115 degrees.
Experts recommend limiting outdoor activities, wearing light and loose-fitting clothing, and drinking plenty of water.
Chicago residents can call 311 for well-being checks on loved ones or friends during the watch, according to NWS.