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Canada › Snow day calculator

Snow Day Calculator — Toronto

The chance that school buses are cancelled tomorrow in Toronto, ON, worked out from the local forecast.

Snow day odds · Toronto

Forecast →
0%
Very unlikely

No snow in the next 24 hours.

Snowfall
None next 24 h
Snow starts
—
Overnight low
54°
Freezing rain
No
Wind gusts
21 mph
Central & Atlantic Canada: freezing rain and heavy snow cancel buses. We could not detect your town, so this is Toronto; search for yours.

Next 24 hours · Toronto

Hourly →
  • Now63°20%
  • 3 PM64°20%
  • 4 PM64°20%
  • 5 PM63°20%
  • 6 PM63°20%
  • 7 PM61°20%
  • 8 PM59°20%
  • 9 PM59°20%
  • 10 PM57°40%
  • 11 PM57°40%
  • Tue
  • 12 AM55°40%
  • 1 AM55°40%
  • 2 AM55°40%
  • 3 AM54°40%
  • 4 AM54°40%
  • 5 AM54°40%
  • 6 AM54°40%
  • 7 AM54°40%
  • 8 AM57°40%
  • 9 AM59°40%
  • 10 AM63°40%
  • 11 AM64°40%
  • 12 PM66°20%
  • 1 PM68°20%

Most likely snow days

across Canada
No city we track has significant snow, freezing rain or extreme cold in the next 24 hours.

How the odds are worked out

The number comes from the next 24 hours of forecast for this town: snowfall, when it starts, the overnight low, freezing rain and gusts. What closes schools depends on the region, so the snow needed for high odds rises from about 4 cm on the BC coast to 15 cm in Ontario, Quebec and Atlantic Canada, 20 cm on the Prairies and 25 cm in the North. Freezing rain and extreme cold raise the odds on their own.

Boards usually announce bus cancellations and closures early in the morning, and their decision is the one that counts. Watch the radar and winter alerts the night before.