The Chicago space forecast Friday requires a principally sunny and dry day, with highs within the low 80s to higher 70s. However by tonight, growing humidity and a vortex of storms creating over the northern plains will convey a lot muggier circumstances and the prospect for extreme climate Saturday.
Warmth and humidity will improve once more subsequent week, NBC 5 Storm Staff Meteorologist Kevin Jeanes, mentioned together with day by day probabilities for rain.
Because the weekend approaches, this is a breakdown of what the forecast appears to be like like.
Saturday and Sunday
Most forecast fashions had been in settlement that strong-to-severe storms with heavy rain and gusty winds had been anticipated to develop in a single day over the northern plains, Jeanes mentioned.
“If that develops, we get the prospect of thunderstorms as early as 9 a.m.,” Jeanes mentioned, with storms beginning to the north and west. The storms might stay within the space via round mid-afternoon Jeanes mentioned.
If morning storms maintain out, Jeanes mentioned, the extreme risk can be higher within the afternoon.
A publish from the Nationwide Climate Service confirmed the almost certainly state of affairs was “a line of decaying storms” throughout northern Illinois within the morning, with some storms containing damaging winds and hail towards the central a part of the state within the afternoon.
After a quiet climate day right now, durations of showers and storms are anticipated Saturday into at the very least early subsequent week. Saturday’s extreme storm threat will rely on the evolution of any thunderstorm complexes throughout IA and MN tonight. pic.twitter.com/0gDJPw6pkh
— NWS Chicago (@NWSChicago) July 18, 2025
Nonetheless, the event would rely on what kinds in a single day.
“Saturday’s extreme storm threat will rely on the evolution of any thunderstorm complexes throughout Iowa and Minnesota tonight,” the NWS mentioned.
Temperatures Saturday can be within the low 80s, Jeanes mentioned, with highs within the higher 70s Sunday. Sunday might additionally see an opportunity of rain creating south of I-80.
Warmth ramps up subsequent week
“Subsequent week, its going to be all in regards to the warmth,” Jeanes mentioned, due to a dome of excessive stress throughout the realm.
The warmth and humidity will start to construct Tuesday, with the warmth lifting to the north because the week goes on. Temperatures shall be within the higher 80s to low 90s, Jeanes mentioned, with even increased “feels-like” temperatures.
Rounds of sturdy to extreme thunderstorms had been additionally doable subsequent week, Jeanes mentioned, beginning Tuesday and lasting via Friday.
