Springfield, Ill. – A milder-than-normal start to March is expected across central and southern Illinois, with warmer air favoring mostly rain from Sunday, March 1, through Thursday, March 5.
According to NOAA’s 6-10 day outlook issued Monday, central and southern Illinois are favored to see above-normal temperatures during the March 1-5 stretch, while precipitation trends near to slightly above seasonal averages across the Midwest. That warmer pattern significantly reduces the likelihood of widespread snow, with rain expected to be the dominant precipitation type.
In central Illinois, including Springfield, Decatur and Champaign, passing rain showers are the most likely outcome as systems track through the region. Periods of steadier rainfall could lead to slick stretches along Interstate 55 and Interstate 72, particularly during peak commute hours.
Farther south, including Carbondale, Marion and Mt. Vernon, rain should dominate with minimal wintry concern. While a brief rain-snow mix cannot be ruled out during overnight hours in northern fringe areas of the region, temperatures are expected to remain warm enough to prevent meaningful accumulation.
Drivers should remain alert for reduced visibility and ponding on roadways during heavier showers, especially in low-lying or poor-drainage areas. With temperatures trending above normal, early March is likely to feel more like early spring than late winter across much of central and southern Illinois.
Additional refinements are expected later this week as the March 1-5 window approaches.
