Toronto Snow Day Predictor 2026: Live Chances
Will Toronto get a snow day tomorrow? The live predictor below checks tomorrow’s snowfall, wind gusts, overnight low, and weather conditions for Toronto and turns them into a snow-day chance. Below it: how the TDSB actually decides, why Toronto closes far less often than you’d expect, and exactly when and where the announcement lands.
Toronto is the biggest school board in Canada, and it has the highest bar for snow days in the province. The city can wake up to 20 centimetres of snow and still send everyone to school — then shut the entire system down for a 50-centimetre monster. If you want to know which one tomorrow will be, this page has the live odds plus the full picture of how Toronto decides.
How to Read Your Toronto Score
Each percentage is our estimate of the chance that Toronto school buses get cancelled or schools close tomorrow, based only on the weather forecast:
- Under 20%: Normal winter day. Everything runs.
- 20–49%: Worth watching. Check the TDSB site before bed.
- 50–79%: Good chance of bus cancellations. Have a backup plan.
- 80% and up: Start planning like it's happening.
The score comes from four things: forecast snowfall, peak wind gusts, the overnight low, and the overall weather code. It refreshes every time you load the page, so an evening number can shift by morning.
One honest note: this is a weather-based estimate. About 93% of TDSB students don't take a school bus, so Toronto's decision works differently from most Ontario cities — read on for why that matters.
Will Toronto Schools Close Tomorrow?
The only official answer comes from the boards themselves, and it lands early. The Toronto District School Board posts closure and bus-cancellation decisions on its website and social media by 6:00 AM. The Toronto Catholic District School Board typically follows within minutes — in past storms its call has gone out shortly after 6.
Your morning routine on a storm day:
- Check the TDSB website before 6:30 AM — that's the official source.
- Watch for a SchoolMessenger notification if your child is registered — the board pushes alerts to families automatically.
- Local outlets like CP24 and 680 News get the same notice at the same time and run closure tickers all morning.
Don't wait for the night before. Toronto boards decide in the early morning after watching the overnight forecast — which is exactly why the live score above updates as the forecast shifts.
How Does the TDSB Decide on Snow Days?
The decision runs through the Toronto Student Transportation Group (TSTG), the consortium that serves the TDSB and TCDSB. Its teams, along with board staff, monitor the forecast and road conditions overnight and into the early morning. A group including the director, transportation staff, and communications reviews the forecast, road conditions, and safety risks — then makes the call.
Here's the Toronto dynamic that surprises newcomers: roughly 93% of TDSB students don't ride a school bus. They walk, take the TTC, or get driven. So when weather turns bad, the board's most common move is to cancel transportation but keep schools open — a full closure strands some 239,000 students and staff, so the bar for it is very high.
That bar in action: in February 2022, the TDSB kept every school open and cancelled only buses with 11 cm recorded at Pearson Airport. It took a 40–60 cm storm in January 2022 — the first city-wide TDSB closure in eight years — to shut the system down.
Why Does Toronto Get So Few Snow Days?
Three reasons, all about scale:
- The plow army. Toronto runs 1,400+ pieces of winter equipment across some 14,700 km of roads and 7,900 km of sidewalks, on a winter budget north of $100 million. The city is built to keep moving.
- Transit, not buses. With the vast majority of students off yellow buses, the board doesn't face the rural-road problem that drives cancellations elsewhere. A storm that cancels every bus in Simcoe County is a commuting headache in Toronto — not a closure.
- The rarity effect. Because full closures are so unusual, they only happen for genuinely historic storms: January 2022's 40–60 cm shutdown, and January 2026, when Pearson Airport recorded 46 cm in a single day — Toronto's snowiest day on record.
The flip side: when Toronto does close, it's a major event. The January 2026 storm shut schools across Toronto, York, Peel, and Halton, closed universities, and snarled Pearson Airport — precisely because the city so rarely stands down.
Toronto's School Boards and Who Decides What
Four boards operate in Toronto, and each makes its own call:
- Toronto District School Board (TDSB) — English public, the largest board in Canada.
- Toronto Catholic District School Board (TCDSB) — English Catholic; announces on its own site and social channels.
- Conseil scolaire Viamonde — French-language public.
- Conseil scolaire catholique MonAvenir — French-language Catholic.
Transportation for the English boards runs through the TSTG. The French boards announce separately, so check their sites directly if that's your board.
Do Toronto schools close for cold, or just snow? Both are on the table. The city has issued extreme cold weather alerts with wind chills in the −15 to −20°C range while boards weighed their options — cold alone can end the debate.
What Counts Toward a Toronto Snow Day?
Our predictor scores the same four factors that drive real board decisions:
- Snowfall amount: The biggest driver — but Toronto's threshold is the highest in Ontario. Think 25+ cm before closure talk gets serious, 40+ cm for a shutdown.
- Wind gusts: Wind turns heavy snow into whiteouts and drifts, and can ground buses even when totals look manageable.
- Overnight low: Extreme cold strains buses mechanically and makes the walk to school unsafe for kids.
- Weather code: Freezing rain is Toronto's wildcard — a few millimetres of ice shuts down roads faster than 20 cm of snow, and it's behind some of the city's most disruptive winter days.
Toronto vs the Rest of Ontario
Peer-reviewed research on Ontario school closures found that Toronto, Hamilton, and Niagara have far fewer bus cancellations than central Ontario — southern students can get up to three weeks more instructional days than their peers in high-cancellation districts. If you want the full provincial picture, see our Ontario snow day guide with live chances for 8 cities — and our Ottawa predictor for the capital's very different winter.
Will Toronto schools close tomorrow?
Check the live predictor at the top of this page for the current chance. The official decision comes from the TDSB, posted on its website and social media by 6:00 AM — that's the only call that counts.
What time does the TDSB announce snow days?
By 6:00 AM on the TDSB website and social media channels. Families also get SchoolMessenger notifications, and outlets like CP24 and 680 News carry the announcement at the same time.
How many snow days does Toronto get per year?
Very few. Full TDSB closures are rare — the January 2022 storm was the first city-wide closure in eight years. Bus cancellations with schools open are more common but still infrequent compared to the rest of Ontario.
Does the TDSB close for freezing rain?
It can. A few millimetres of ice can shut down Toronto roads faster than 20 cm of snow, and freezing rain has driven some of the city's most disruptive winter days even when snowfall totals looked modest.
Are Toronto school buses cancelled when schools stay open?
Yes — that's the most common outcome. About 93% of TDSB students don't ride a school bus, so the board typically cancels transportation while keeping schools open for everyone else.
Does the TDSB do remote learning on snow days?
When schools fully close, the TDSB has sometimes pivoted to remote learning instead of a traditional snow day — as it did during the January 2022 storm. But a full closure with no instruction at all is also possible; the board decides each time.
Do Toronto schools close for extreme cold or just snow?
Both are possible. The city has issued extreme cold weather alerts with wind chills around -15 to -20°C while boards weighed closures — cold alone can cancel buses or close schools.
Why didn't Toronto get a snow day when other cities did?
Scale. Toronto's massive plowing operation, transit-based student travel, and the 239,000 students a closure would strand mean the bar is far higher here. Twenty centimetres that closes Barrie is a school day in Toronto.
How do I know if my child's Toronto school bus is cancelled?
Check the TDSB website by 6:00 AM, watch for a SchoolMessenger alert, or check CP24 and 680 News — all carry the same announcement simultaneously.
Which Toronto school boards can close for snow?
All four — TDSB, TCDSB, Conseil scolaire Viamonde, and Conseil scolaire catholique MonAvenir — make their own calls. Transportation for the English boards runs through the Toronto Student Transportation Group.
Check Before 6 AM Tomorrow
Bookmark this page — the score refreshes with every forecast update. The official word is the TDSB website by 6:00 AM.
