Widespread light to moderate snow blankets portions of the region, with Mattice, ON measuring about 10.6 cm and winds around 46 km/h, and Griffith, ON near 6–7 cm with breezes near 40 km/h. Most areas will see fluffy to moderate snowfall through dawn, keeping roads slick but unlikely to completely close schools. North and central Ontario can expect slower morning commutes and potential bus delays, especially where snow sticks to untreated roads. In the broader area, expect lingering flurries to ease by late morning as temperatures hover near or just below freezing.
Stop relying on outdated “magic number” calculators. Snow Day Predictor is the 2026 standard for school closing probabilities, built on the same ultra-high-resolution weather engine that powers the world’s most popular smartphones.
While other sites give you a generic percentage based on total snowfall, we analyze hour-by-hour atmospheric changes to tell you exactly when the roads will become impassable.
Most snow day calculators use global models that only update every 6 to 12 hours. In a fast-moving winter storm, that data is obsolete before you even wake up. Our system leverages ultra-precision hourly data to track the “Morning Crunch”—the critical window between 4:00 AM and 7:00 AM that determines whether a superintendent calls for a closure or a delay.