CHICAGO, Ill. — A sharp blast of cold air is set to sweep across Illinois later this week, and it will bring the coldest feel of the season so far. By Friday morning, November 13, wind chills could fall into the teens across northern Illinois, including Rockford, Moline, and the Chicago area. The rest of the state, from Peoria to Paducah, is expected to feel like the 20s. Before the cold arrives, residents will get to enjoy mild temperatures in the 60s today and Tuesday.
Mild Start to the Week Before the Big Change
The early part of the week will feel more like early fall than mid-November. Highs in the 60s are expected across much of Illinois on Monday and Tuesday, giving residents a final stretch of comfortable weather. Those warm days are a good chance to finish outdoor chores, rake leaves, or put away patio furniture. Many people may want to take care of winter prep while the weather still cooperates.
That pleasant pattern will not last long, though. A strong push of colder air is expected to move in during the second half of the week. Temperatures will drop sharply as gusty winds pull chilly air down from the north. The change could feel especially dramatic coming right after two days in the 60s.
Teens Likely Across Northern Illinois
The coldest wind chills on Friday morning are expected in the northern third of the state. A forecast map shows wind chills in the teens covering Rockford, Moline, LaSalle, and parts of the Chicago metro area. Counties such as Jo Daviess, Stephenson, Ogle, Lee, Whiteside, Henry, and Rock Island fall within that coldest zone. Areas just across the border in Iowa and Wisconsin are also expected to see similar readings.
Wind chills in the teens can make even a short walk outdoors feel painful. Exposed skin cools quickly when the wind is blowing and temperatures are near or below freezing. Early commuters, students waiting for buses, and outdoor workers will feel the cold the most. Heavy coats, hats, and gloves will be needed for anyone heading out early Friday.
Central and Southern Illinois Feel Like the 20s
Farther south, the cold will still be noticeable, but slightly less severe. Wind chills in the 20s are expected across central Illinois, including Peoria, Quincy, Springfield, and Champaign. The same range is forecast for Effingham, the St. Louis Metro East, Mount Vernon, and Marion. Even far southern areas near Paducah could start Friday feeling like the 20s…