Widespread light to accumulating snow streams across the Great Lakes and into northern Ontario this morning, with the heaviest and steadier snowfall remaining in northern regions like Manitouwadge and Constance Lake. Expect slick driveways and local slick spots on untreated roads; southern Ontario should see periods of snow but minimal impact to schools. Winds stay breezy to gusty in pockets, but no widespread blizzard conditions. No freezing rain detected, so buses are unlikely to be canceled region-wide, though isolated delays in northern districts may occur if snowfall intensifies.
Stop relying on outdated âmagic numberâ calculators.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 In a fast-moving winter storm, that data is obsolete before you even wake up.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.