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Snow day predictor for Sudbury

Snow-day forecast for Greater Sudbury, tuned for heavy snow and real cold.

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A board is only a link to that board's page. It does not change this forecast.

Sudbury, Ontario

Updated Nov 4, 2026, 7:36 p.m.. Matched Sudbury. High snow tolerance (snow points × 0.72). High cold sensitivity.

The morning decision window has passed in this time zone. Tomorrow is the score to watch.

0%Snow day chance

School is probably on

Pack your bag. This forecast does not suggest a closure.

Buses: 4% chance of a cancellation or delay. Higher confidence.

0.0 cmSnowfall
0.0 cm/hPeak intensity
11.4°C8 a.m. temperature
9.0°CWind chill
20 km/hWind
1920212223012345678
Snowfall · 0 pts
Overnight timing · 0 pts
Temperature and wind chill · 0 pts
Freezing rain · 0 pts
Wind · 0 pts

Biggest factor: nothing strong in the overnight window.

What should I do? Pack the school bag. Still check your board in the morning in case the buses are cancelled.

Advanced: adjust the forecast

Weather data: Open-Meteo. Postal codes use GeoNames forward-sortation centroids (CC BY 4.0); an unknown area falls back to OpenStreetMap Nominatim. This is an estimate, not a school-board announcement. Estimate only. Check your board.

Will school be closed tomorrow?

Votes on this Sudbury page. One vote per device today. This is not a board decision.

  • 0 · 0%No chance
  • 0 · 0%Maybe
  • 0 · 0%For sure

0 votes today.

Greater Sudbury operates through snow that would stall a southern city, and it also gets cold enough to matter on its own. The profile is high snow tolerance and high cold sensitivity. A deep snowfall moves the score less than it would in Toronto. A morning that feels like −35°C moves it more.

We do not have a board page for the local boards, and we will not invent a consortium URL. School Bus Ontario's directory is the place to find the transportation planner for your region. The score is still only the weather.

We do not have a board page for every authority here. Use the official links and your school's site.

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Questions parents ask

Why are Sudbury, the Sault, and Thunder Bay grouped as related pages?

They are not suburbs of each other. They are the northern Ontario cities on this site, with similar snow-and-cold settings. Use the page for the city you are actually in.

Does the provincial Ontario default apply here?

No. Sudbury has its own saved profile. The Ontario default is what you get for a town that is not in the city list.