Across central and northern Ontario, expect broad snowfall totals around 20 to 27 cm with persistent Precip throughout the period and gusty west-northwest winds around 45 to 60 km/h. The combination of heavy snow and these winds will create slick road conditions and reduced visibility, raising the likelihood of school delays or closures in affected areas. Regions like Sudbury, North Bay, Parry Sound, and Huntsville show the highest accumulation and wind risk, but widespread impacts are likely elsewhere as well. If your area has heavier bursts (some pockets approaching 27 cm), plan extra time for the morning commute and get kids ready early. Monitor local alerts for any bus cancellations or district closures, as higher snow totals and gusty winds boost overall disruption potential.
Stop relying on outdated âmagic numberâ calculators. Snow Day Predictor is the 2026 standard for school closing probabilities, built on the same ultra-high-resolution weather engine that powers the worldâs 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 In a fast-moving winter storm, that data is obsolete before you even wake up.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 âMorning Crunchââthe critical window between 4:00 AM and 7:00 AM that determines whether a superintendent calls for a closure or a delay.