Cold conditions will persist across Central Illinois through the weekend before temperatures gradually rebound and a wintry system moves in early next week.
According to the National Weather Service Central Illinois, below-normal temperatures will continue through Saturday and Sunday, with daytime highs largely in the upper teens to lower 20s Saturday and lower to mid-20s Sunday. Overnight lows are expected to fall into the single digits and lower teens, creating continued cold-weather concerns, especially during early morning hours.
A modest warm-up begins on Monday, with highs rising into the lower to mid-30s, closer to seasonal norms. That warming trend sets the stage for a more organized weather system on Tuesday, which is expected to spread wintry precipitation across the region.
Forecast guidance indicates temperatures will remain cold enough to support mostly snow, though a rain-snow mix is possible along and south of Interstate 70, depending on how quickly warmer air moves north. High temperatures Tuesday are forecast to range from 30 to 37 degrees, with lows in the upper teens to lower 20s.
At this time, forecasters emphasize that confidence in precipitation type and amounts is still developing, and residents should expect forecast refinements over the coming days. Even light snow or mixed precipitation could create slick travel conditions, particularly during Tuesday morning and evening commutes along I-70, I-72, I-74, and I-55.
Wednesday is expected to remain cool, with highs generally in the mid-20s to near 30, suggesting lingering winter conditions even after the system exits.
Residents are encouraged to use caution during the cold weekend, dress in layers, and monitor updates regarding Tuesday’s potential snow impacts. Commuters, students, and outdoor workers should stay alert for changing road conditions next week.
Additional forecast updates will be provided by the National Weather Service Central Illinois as confidence increases.
