A broad swath of snow will persist into the morning for much of Ontario’s snow belts with 10–12 cm in towns like West Montrose, Parry Sound, McKellar, Rosseau, and Gravenhurst, bringing slick roads and potential bus delays for the start of the day. A few regions push toward 12–15 cm, elevating the risk of slower commutes and school delays; plan extra time and have kids ready early. Winds generally 40–50 km/h in these areas, but a handful of exposed routes and coastal areas can gust 60–70 km/h, which can produce blowing snow and further tricky travel. No freezing rain reported, but stay alert for evolving conditions and check local school/transport advisories this morning.
Stop relying on outdated “magic number” calculators.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 In a fast-moving winter storm, that data is obsolete before you even wake up.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.