Chicago, IL – An unusually prolonged and dangerous stretch of Arctic cold continues across the Great Lakes region, with extreme temperatures expected to persist through Sunday, February 2, marking what forecasters say could be the longest cold stretch in decades for parts of the area.
According to the National Weather Service Weather Prediction Center, much-below-normal temperatures remain entrenched across Illinois, Indiana, Michigan, Ohio, Wisconsin, and northern Minnesota. Overnight lows are expected to fall into the single digits and below zero, particularly in northern and inland areas. Wind chills may plunge to -15°F to -30°F, especially during overnight and early morning hours.
Forecasters say repeated surges of Arctic air have prevented meaningful warming, extending a cold spell that has already impacted travel, utilities, and infrastructure. Daytime highs across much of the region are forecast to remain in the teens and low 20s, offering little relief.
Another reinforcing blast of cold air is expected late Friday into Saturday, keeping dangerous conditions locked in through the weekend. Lake-effect snow is also possible downwind of the Great Lakes, which could further complicate travel in some areas.
Officials across the region warn the extended duration of the cold increases the risk of frozen pipes, vehicle failures, and cold-related illness. Residents are urged to limit time outdoors, dress in layers, check on vulnerable neighbors, and keep emergency winter kits in vehicles.
