School Closings in Illinois
Will schools close in Illinois tomorrow? Live snow day probability for 15 Illinois cities, updated every 30 minutes.
About Illinois Winter Weather
Illinois sits in the classic mid-latitude winter belt — enough snow to regularly close schools, not enough to build infrastructure for it. Across the 15 Illinois cities covered by SnowSense™, average annual snowfall is 31 inches. Chicago receive up to 37 inches in a typical winter; lower-latitude cities like Decatur see closer to 22.
School-closure decisions in Illinois often hinge on precipitation type as much as accumulation. Storms that cross the region frequently transition from snow to sleet to freezing rain and back, and the difference between a four-inch snow event and a one-inch ice-glaze event is invisible until the storm arrives. Districts tend to close preemptively when ice risk is in the forecast.
Pick a city above to see live snow day probability for your specific Illinois location. SnowSense™ refreshes every 30 minutes with live NWS forecast data, ice-risk modeling, and Illinois-calibrated closure thresholds.
Illinois Cities — Snow Day Probability
Illinois School Districts
FAQ — Illinois School Closings
How do I check if school is closed in Illinois?
Check SnowSense™ for live snow day probability in Illinois. Our model updates every 30 minutes using NWS forecast data and Illinois-calibrated closure thresholds. You can also monitor your district's automated notification system and local news stations.
What temperature closes schools in Illinois?
Illinois districts vary: northern areas may stay open until wind chills hit -25°F, while southern areas close at -10°F. Ice events close schools faster than snow in Illinois.
How many snow days does Illinois typically get?
Illinois averages 31 inches of snow per year, with most districts using 3–7 snow days annually. Ice events can consume multiple days at once.