Chicago, Illinois – A prolonged stretch of bitter cold is expected to settle over Illinois late this week, keeping temperatures near freezing and skies largely cloudy as the state remains locked in a deep winter pattern. Overnight lows are expected to drop to around 1 degree, while daytime temperatures struggle to recover, offering little relief through early next week.
According to the National Weather Service, an arctic air mass will remain in place from Saturday through Tuesday, reinforcing cold conditions across the Midwest. Persistent cloud cover will limit daytime warming, while occasional breezes push wind chills into the single digits and below zero at times, especially overnight and during the early morning hours.
Northern and central Illinois, including Chicago, Rockford, Peoria, and Bloomington, are expected to see the coldest conditions. Cloudy skies combined with lingering moisture could lead to slick spots on untreated roads, particularly during overnight hours on Interstate 90, Interstate 80, Interstate 55, and urban side streets. While widespread snow is not expected, isolated flurries cannot be ruled out.
State officials urge residents to limit prolonged time outdoors, dress in warm layers, and ensure heating systems are functioning properly. Drivers are advised to keep winter emergency kits in vehicles and remain alert for icy patches during early morning commutes.
Cold conditions are expected to persist through Tuesday, with additional advisories possible if wind chills drop further or conditions worsen.
