Snow Day Probability
☀️ Chance of school cancellation tomorrow
Data provided by Open-Meteo
Markham is located in Ontario and is served by Markham District School Board, alongside several private and independent schools in the surrounding region. The Markham area averages approximately 142 centimetres of snowfall per year, with the peak snow season typically running from December to March.
In Ontario, school boards announce cancellations through their official websites, social media, and local radio stations, typically by 6:00 AM on storm days. Bus cancellations in the Markham area are often announced separately from in-person school closures, and parents are encouraged to monitor official channels each winter morning.
Markham's location features a Great Lakes climate where lake-effect snow off Lakes Huron, Erie, and Ontario produces heavy localized snowfall, which means winter conditions in and around Markham can vary significantly from one year to the next. Freezing rain, heavy snow, blowing snow, and extreme wind chill are all common reasons for closures. Geographically, Markham sits near 43.86°N, 79.36°W, which influences how regional storm systems track across the area.
Historically, schools in the Markham area close an average of approximately 8 times per winter season due to snow, ice, or extreme cold weather. Use our Snow Day Predictor above to check tomorrow's real-time school closure probability for Markham based on live weather forecast data from Open-Meteo.
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No snowfall or ice risk this week; rain on June 5-6 unlikely to disrupt schools in Markham.
Generated by AI from 7-day Open-Meteo forecast. Snow day predictions are probability estimates based on weather forecast data. School closure decisions are made by local school administrators — always verify with your school's official website, app, or local news for confirmed cancellations.
Our predictor pulls live weather forecast data for Markham from the Open-Meteo API and analyzes snowfall accumulation, temperature, wind chill, and 24-hour precipitation totals to generate a school closure probability percentage for local school boards.
Check between 9 PM and midnight the evening before a potential storm. Weather forecast models are most reliable within a 12–18 hour window, giving you the most accurate prediction.
School boards in Ontario typically announce cancellations through their official website, social media channels, and local radio stations, usually before 6:00 AM on storm days. Bus cancellations are sometimes announced separately from full school closures.