Will Toronto schools be cancelled tomorrow?

Use our Snow Day Predictor to check the probability of TDSB school cancellations. Enter your Toronto postal code (M prefix) to get an instant prediction based on real-time weather data. TDSB announces closures by 6:00 AM through their website and Twitter @TDSB.

When does TDSB announce school closures?

Toronto District School Board (TDSB) typically announces school closure decisions by 6:00 AM. Check the official TDSB website, Twitter @TDSB, or call the TDSB info line. Student Transportation of Canada (STC) handles bus decisions separately.

Which Ontario school boards are most likely to close for snow?

Rural and northern Ontario school boards tend to close more frequently due to snow. Boards like TLDSB (Trillium Lakelands), BHNCDSB (Brant Haldimand Norfolk), and SCDSB (Simcoe County) often close before GTA boards. Urban boards like TDSB require more significant weather events.

How much snow does it take to cancel school in Ontario?

It varies by board. HDSB has closed with 10cm+ when combined with poor visibility. Rural boards may close with less. Factors include: timing of snowfall, wind speed, temperature, visibility, and road conditions. Our predictor analyzes all these factors.

Are Peel and York Region schools closed when Toronto schools are closed?

Not necessarily! Each school board makes independent closure decisions. PDSB (Peel), YRDSB (York Region), and TDSB can have different closure status on the same day. Always check your specific board's announcement.

Ontario Snow Day Predictor | TDSB PDSB YRDSB HDSB School Closures

🏙️ Greater Toronto Area (GTA)

TDSBToronto District School Board

Toronto • 583 schools

Largest school board in Canada

TCDSBToronto Catholic DSB

Toronto • 195 schools

Catholic schools in Toronto

PDSBPeel District School Board

Mississauga, Brampton, Caledon • 259 schools

Ontario's 2nd largest board

DPCDSBDufferin-Peel Catholic DSB

Mississauga, Brampton, Orangeville • 149 schools

Catholic schools in Peel Region

YRDSBYork Region DSB

Markham, Richmond Hill, Vaughan • 209 schools

4th largest board in Ontario

YCDSBYork Catholic DSB

York Region • 103 schools

Catholic schools in York Region

DDSBDurham District School Board

Oshawa, Whitby, Ajax, Pickering • 136 schools

Durham Region public schools

DCDSBDurham Catholic DSB

Durham Region • 42 schools

Catholic schools in Durham

🏔️ Halton Region

HDSBHalton District School Board

Oakville, Burlington, Milton, Georgetown • 95 schools

⭐ Our original focus board!

HCDSBHalton Catholic DSB

Oakville, Burlington, Milton • 55 schools

Catholic schools in Halton

🌾 Southwestern Ontario

TVDSBThames Valley DSB

London, Woodstock, St. Thomas • 159 schools

LDCSBLondon District Catholic SB

London area • 53 schools

WRDSBWaterloo Region DSB

Kitchener, Waterloo, Cambridge • 120 schools

WCDSBWaterloo Catholic DSB

Waterloo Region • 54 schools

HWDSBHamilton-Wentworth DSB

Hamilton • 107 schools

HWCDSBHamilton-Wentworth Catholic DSB

Hamilton • 57 schools

GECDSBGreater Essex County DSB

Windsor, Essex • 73 schools

WECDSBWindsor-Essex Catholic DSB

Windsor area • 41 schools

DSBNDistrict School Board of Niagara

St. Catharines, Niagara Falls • 96 schools

NCDSBNiagara Catholic DSB

Niagara Region • 52 schools

GEDSBGrand Erie DSB

Brantford, Norfolk, Haldimand • 78 schools

BHNCDSBBrant Haldimand Norfolk CDSB

Brantford area • 30 schools

UGDSBUpper Grand DSB

Guelph, Fergus, Orangeville • 67 schools

WGCDSBWellington Catholic DSB

Guelph area • 20 schools

LKDSBLambton Kent DSB

Sarnia, Chatham-Kent • 66 schools

AMDSBAvon Maitland DSB

Stratford, Listowel • 43 schools

🏛️ Eastern Ontario & Ottawa

OCDSBOttawa-Carleton DSB

Ottawa • 144 schools

Largest board in Eastern Ontario

OCSBOttawa Catholic SB

Ottawa • 84 schools

CDSBEOCatholic DSB of Eastern Ontario

Brockville, Smiths Falls • 41 schools

UCDSBUpper Canada DSB

Cornwall, Brockville, Kemptville • 87 schools

LDSBLimestone DSB

Kingston • 68 schools

ALCDSBAlgonquin & Lakeshore Catholic DSB

Kingston, Napanee • 39 schools

RCDSBRenfrew County DSB

Pembroke, Deep River • 31 schools

RCCDSBRenfrew County CDSB

Renfrew County • 21 schools

HPEDSBHastings & Prince Edward DSB

Belleville, Picton • 44 schools

🌲 Central Ontario

SCDSBSimcoe County DSB

Barrie, Orillia, Collingwood • 107 schools

SMCDSBSimcoe Muskoka Catholic DSB

Simcoe County • 50 schools

KPRDSBKawartha Pine Ridge DSB

Peterborough, Cobourg • 85 schools

PVNCCDSBPeterborough Victoria Northumberland Clarington CDSB

Peterborough area • 31 schools

TLDSBTrillium Lakelands DSB

Haliburton, Lindsay, Muskoka • 53 schools

BGCDSBBruce-Grey Catholic DSB

Owen Sound, Hanover • 18 schools

BWDSBBluewater DSB

Owen Sound, Walkerton • 52 schools

🌨️ Northern Ontario

RDSBRainbow DSB

Sudbury, Manitoulin • 38 schools

High snow closure frequency

SCCDSBSudbury Catholic DSB

Sudbury area • 21 schools

NNDSBNear North DSB

North Bay, Parry Sound • 43 schools

NPSCNipissing-Parry Sound Catholic DSB

North Bay area • 21 schools

ADSBAlgoma DSB

Sault Ste. Marie • 42 schools

HSCDSBHuron-Superior Catholic DSB

Sault Ste. Marie, Blind River • 18 schools

LSBLakehead DSB

Thunder Bay • 33 schools

TBCDSBThunder Bay Catholic DSB

Thunder Bay • 19 schools

KSPDSBKeewatin-Patricia DSB

Dryden, Kenora • 28 schools

RCKDSBRainy River DSB

Rainy River, Fort Frances • 15 schools

DSB1DSB Ontario North East

Timmins, Kirkland Lake • 31 schools

NCDSBNortheastern Catholic DSB

Timmins, Kirkland Lake • 17 schools

🇫🇷 French Language School Boards

CSDCEOConseil des écoles catholiques de l'Est

Eastern Ontario • 53 schools

CÉPEOConseil des écoles publiques de l'Est

Ottawa • 42 schools

CSDCCSConseil scolaire de district catholique Centre-Sud

Central/South Ontario • 47 schools

CSDCSOConseil scolaire de district catholique Sud-Ouest

Southwestern Ontario • 30 schools

ViamondeConseil scolaire Viamonde

Central/Southern Ontario • 54 schools

CSDCNConseil scolaire du district du Nord-Est

Northern Ontario • 14 schools

CSPNEConseil scolaire public du Nord-Est

Northern Ontario • 8 schools

CSC ProvidenceConseil scolaire catholique Providence

Southwestern Ontario • 23 schools

❄️ Check Your Ontario Snow Day Chance!

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❓ Ontario Snow Day FAQs

Will Toronto schools (TDSB) be cancelled tomorrow?

Use our Snow Day Predictor to check TDSB closure probability. Enter your Toronto postal code (M prefix) for an instant prediction. TDSB announces closures by 6:00 AM.

When does PDSB announce snow days?

Peel District School Board (PDSB) announces decisions by 6:00 AM through their website, Twitter @PeelSchools, and local news. Student Transportation of Peel handles bus decisions.

Does YRDSB close when TDSB closes?

Not necessarily! Each board makes independent decisions. York Region DSB may have different closures than TDSB on the same day. Always check your specific board.

How much snow cancels school in Ontario?

It varies by board. HDSB has closed with 10cm+. Rural/northern boards may close with less. Factors: snowfall timing, wind, temperature, visibility, and road conditions.

When does HDSB announce closures?

Halton Student Transportation Services (HSTS) monitors from 4:00 AM. Decisions are typically announced by 6:30 AM via HDSB website, Twitter @HDSB, and CP24.

What about 2-hour delays in Ontario?

Some boards, particularly in Northern and rural Ontario, use 2-hour delays instead of full closures. SCDSB, TLDSB, and others may implement delayed starts during moderate weather.