Springfield, IL – A developing system could bring accumulating snow to portions of Central Illinois early Saturday, with confidence rising for at least 2 inches or more in several communities, according to the National Weather Service (NWS) Central Illinois office.
According to the latest NWS model blend guidance, the strongest window for accumulating snow is midnight through noon on Saturday, November 29, with the peak likelihood centered in the Saturday morning timeframe. Probabilities for snowfall greater than 2 inches have increased notably over recent forecast updates.
Cities highlighted in the forecast—including Bloomington, Champaign, Decatur, Effingham, Peoria, and Springfield—show varying chances, with some locations now approaching or exceeding the 40–50% probability range for 2 inches or more. Forecasters caution that these probabilities may adjust as new model runs come in throughout the week.
The NWS notes a strong signal for accumulation, which may lead to slick road conditions during the early part of Saturday, especially for those traveling before sunrise. While confidence has trended upward, meteorologists emphasize that the forecast remains sensitive to changes in storm track, moisture availability, and overnight temperatures.
Drivers with early weekend travel plans should monitor updates closely. Even minor shifts in the system’s path could influence which counties see accumulating snow versus lighter amounts.
No advisories have yet been issued, but the NWS encourages residents to stay alert over the next few days as the forecast becomes more refined.
More updates are expected as Saturday approaches, with the potential for winter weather headlines depending on forecast trends.
