Colder air and lingering snow amplify slick roads from Ontario to the Great Lakes. Sturgeon Falls will see about 16 cm of lake‑effect snow with winds near 50 km/h, likely slow buses and morning delays; Marten River and Ardoch stay around 9 cm with gusts in the 40–50 km/h range and frigid lows, so dress kids for subzero start. Degelis and nearby northern pockets stay snowing light-to-moderate, keeping sidewalks and driveways icy. Southward, precipitation remains light for the day, but overall the pattern stays cold and unsettled, so plan for a cautious morning and potential school delays in higher snow zones.
Stop relying on outdated “magic number” calculators.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 In a fast-moving winter storm, that data is obsolete before you even wake up.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.