Snow Day Predictor Canada: Will School Be Closed Tomorrow?
Snow Day Predictor Canada estimates the weather-based chance of a snow day for your city or postal code. Enter a location to see current weather, a 3-day snow forecast and a 0–100 score. It is a planning aid — always confirm official school and bus announcements with your board.
Popular Canadian Snow Day Locations
Canada CoverageSnow Day Forecast for Mississauga, Ontario
The highest weather-based snow day score in the next 3 days is 0/100 (Very Low Chance) for Today — September 29, 2026, with about 0 cm of snow forecast, a 0% chance of snow and a minimum of 15°C. This is a weather estimate, not an official school or bus announcement.
Current Weather
Live Weather
Highest forecast score: Today — September 29, 2026.
3-Day Snow & Weather Forecast
Hourly Details
Snow Day Prediction Score
10 cm or more scores highest.
Snow chance — up to 30 points.
80% or higher scores highest.
Minimum temperature — up to 20 points.
−5°C or colder scores highest.
Winter conditions — up to 10 points.
Freezing rain, sleet, ice, blizzard or snow conditions can trigger the bonus.
School Closure & Bus Cancellation Weather Risk
| Forecast Factor | Peak Day: Today | Impact |
|---|---|---|
| Snowfall | 0 cm | None |
| Chance of snow | 0% | None |
| Minimum temperature | 15°C | None |
| Peak wind (not in score) | 16.6 km/h | Low |
| Conditions | Overcast | None |
Hourly Snow & Travel Conditions
| Time | Weather | Temp | Snow % | Snow cm | Wind | Travel Risk |
|---|---|---|---|---|---|---|
| 7:00 PM |
|
19.8° | 0% | 0 | 11.5 km/h | Low |
| 8:00 PM |
|
18.9° | 0% | 0 | 15.5 km/h | Low |
| 9:00 PM |
|
17.9° | 0% | 0 | 16.6 km/h | Low |
| 10:00 PM |
|
17.8° | 0% | 0 | 16.2 km/h | Low |
| 11:00 PM |
|
17.5° | 0% | 0 | 16.6 km/h | Low |
| 12:00 AM |
|
17.1° | 0% | 0 | 15.8 km/h | Low |
| 1:00 AM |
|
16.7° | 0% | 0 | 16.9 km/h | Low |
| 2:00 AM |
|
16.5° | 0% | 0 | 16.9 km/h | Low |
| 3:00 AM |
|
16.2° | 0% | 0 | 16.6 km/h | Low |
| 4:00 AM |
|
16.3° | 0% | 0 | 14.8 km/h | Low |
| 5:00 AM |
|
16.6° | 0% | 0 | 15.1 km/h | Low |
| 6:00 AM |
|
16.6° | 0% | 0 | 13.3 km/h | Low |
Bus Cancellation vs School Closure
A bus cancellation does not always mean a school is closed. Depending on the school board and transportation provider, transportation and school-operation decisions can be made separately using local weather, road and safety information.
| What Changes | Bus Cancellation | School Closure |
|---|---|---|
| Transportation | School buses may not operate on affected routes. | Normal student transportation does not operate because the school is closed. |
| School Operation | The school may remain open. | Classes or school programs may be suspended or the school site may close. |
| Decision | Transportation providers or boards assess route and travel safety. | The school board makes the official school-operation decision. |
| What to Check | Check your school board or transportation provider for route updates. | Check the official school-board announcement before travelling. |
What Winter Weather Affects School Travel Across Canada?
Winter hazards differ across Canada. These are general patterns, not fixed closure rules — every school board and transportation provider sets its own procedures.
Show winter hazards by region
| Region | Winter hazards that commonly affect travel | What to watch in the forecast |
|---|---|---|
| Ontario | Lake-effect snow, freezing rain, blowing snow on rural routes | Overnight snowfall, ice, timing near the morning bus run |
| Quebec | Heavy snowfall, ice and freezing rain | Snow totals, freezing rain risk, road conditions |
| Prairies (AB, SK, MB) | Extreme cold, wind chill, blowing snow and blizzards | Wind chill, wind speed, visibility |
| Atlantic Canada | Winter storms, freezing rain and rapidly changing conditions | Storm timing, ice accumulation, wind |
| British Columbia | Wet snow and ice on hills and untreated roads | Temperature near freezing, elevation, overnight lows |
| Territories (YT, NT, NU) | Extreme cold, strong wind and low visibility | Wind chill and blowing snow |
Weather Factors Behind a Snow Day Estimate
A snow day depends on more than one weather variable. This tool combines forecast snowfall, snow probability, minimum temperature and winter-weather conditions into a simple 0–100 planning score. The score helps explain the forecast; it does not replace an official school or transportation decision.
Show the 6 scoring factors
Snowfall Forecast
Forecast snowfall is the largest part of the model, with up to 40 points. Higher expected accumulation contributes more to the score because substantial snow can affect roads, sidewalks and travel conditions.
Chance of Snow
Snow probability contributes up to 30 points. A higher probability means the forecast has stronger support for snow during the selected day. Probability is still a forecast measure, not a guarantee.
Freezing Temperatures
The minimum forecast temperature contributes up to 20 points. Colder overnight conditions can increase the potential for icy or difficult travel, although actual road conditions depend on many local factors.
Winter Weather Conditions
The model adds a winter-condition bonus when forecast wording contains terms such as snow, heavy snow, freezing rain, sleet, ice or blizzard. This adds context without treating one weather phrase as a closure decision.
Wind Chill & Hourly Conditions
The hourly section shows temperature, snow chance, expected snowfall and wind for the next 12 hours, plus a 6–9 AM commute summary. These details support daily planning but are not part of the published 100-point snow-day score.
School & Bus Decisions
School closures and bus cancellations are local operational decisions. Boards and transportation providers can consider road conditions, forecasts, routes, safety and other information that a general weather score cannot fully represent.
How Canadian School Boards Decide Snow Days
Canadian school boards use local procedures to assess whether winter conditions affect school operations or transportation. Weather forecasts are one input, while road conditions, transportation safety, local impacts and operational information can also affect the decision.
Show how school boards decide
Weather & Road Conditions
Boards can consider current and forecast weather together with road and travel conditions. Snowfall, freezing rain, ice, extreme cold and other winter hazards may affect the assessment.
Transportation Safety
Bus operations can involve route conditions, road safety and transportation-specific information. A transportation cancellation can therefore be separate from a decision to close schools.
Local Conditions & Timing
Conditions can vary between communities and can change during a winter event. Boards may review updated forecasts, local reports and conditions before communicating a decision.
Official Decision & Communication
The school board or its designated decision-makers communicate official school or transportation changes. Families should use the board, school and transportation provider’s official channels for final information.
Snow Day Predictor for Canadian Students, Parents, and Teachers
Snow Day Predictor Canada provides snow day forecasts, weather-based school closure and bus cancellation risk, winter weather insights and snowfall forecasts for communities across Canada.
For Parents
Check the score the evening before, then confirm with your school board and bus provider in the morning. If the score is high, it can help to line up childcare or a backup plan early.
For Students
A high score means winter conditions are more likely, not that school is cancelled. Wait for the official announcement before assuming you have the day off.
For Teachers & Staff
Use the forecast to plan your commute and check your board’s staff communication channels. The hourly section shows when snow is expected around the morning commute.
Check Snow Day Weather Across Canada
Search a city, town, Canadian postal code or current location. The predictor is designed for locations across Canada’s provinces and territories, while the available forecast detail depends on the selected location and weather data.
Popular Snow Day Forecast Cities
Check winter weather and snow day forecast information for popular Canadian cities. Select a city to load its current forecast and score.
Toronto · Ontario
Toronto is served mainly by the Toronto District School Board and the Toronto Catholic District School Board. Freezing rain and snow timing around the morning commute matter most for travel across the GTA.
Toronto Snow Day Forecast →Ottawa · Ontario
Families in Ottawa usually follow the Ottawa-Carleton District School Board or the Ottawa Catholic School Board. Heavy snowfall, freezing rain and extreme cold can all affect school travel.
Ottawa Snow Day Forecast →Montréal · Quebec
Montréal is served by the Centre de services scolaire de Montréal and the English Montreal School Board, among others. Heavy snow and ice can affect bus routes and sidewalks.
Montréal Snow Day Forecast →Calgary · Alberta
The Calgary Board of Education and the Calgary Catholic School District are the main boards. Chinook winds can swing temperatures quickly, so conditions can change within hours.
Calgary Snow Day Forecast →Edmonton · Alberta
Edmonton Public Schools and Edmonton Catholic Schools serve the city. Long stretches of extreme cold and wind chill matter alongside snowfall.
Edmonton Snow Day Forecast →Vancouver · British Columbia
The Vancouver School Board serves the city, where even light snow or ice on hills can disrupt travel because winter weather is less frequent than in most Canadian cities.
Vancouver Snow Day Forecast →Winnipeg · Manitoba
Winnipeg School Division and nearby divisions make decisions locally. Extreme cold, wind chill and blowing snow are key winter factors on the Prairies.
Winnipeg Snow Day Forecast →Halifax · Nova Scotia
The Halifax Regional Centre for Education covers the region. Coastal storms, freezing rain and temperatures near freezing can make timing hard to forecast.
Halifax Snow Day Forecast →Hamilton · Ontario
The Hamilton-Wentworth District School Board and the Hamilton-Wentworth Catholic District School Board serve the city. Snow, ice and hilly routes on the escarpment can affect travel.
Hamilton Snow Day Forecast →Mississauga · Ontario
Mississauga is served by the Peel District School Board and the Dufferin-Peel Catholic District School Board. Check both boards and your bus provider for official notices.
Mississauga Snow Day Forecast →Barrie · Ontario
Barrie is served by the Simcoe County District School Board and the Simcoe Muskoka Catholic District School Board. Snow squalls in central Ontario can change conditions quickly.
Barrie Snow Day Forecast →London · Ontario
London is served by the Thames Valley District School Board and the London District Catholic School Board. Snowbelt squalls off the Great Lakes can affect parts of southwestern Ontario.
London Snow Day Forecast →Popular Canadian School Boards
These school boards serve large Canadian communities covered by this weather planning tool. For school closures, transportation cancellations and emergency notices, always use the board’s official communication channels.
Toronto District School Board
Ontario · Toronto
Official Board Site →Peel District School Board
Ontario · Peel Region
Official Board Site →York Region District School Board
Ontario · York Region
Official Board Site →Ottawa-Carleton District School Board
Ontario · Ottawa
Official Board Site →Durham District School Board
Ontario · Durham Region
Official Board Site →Calgary Board of Education
Alberta · Calgary
Official Board Site →Edmonton Public Schools
Alberta · Edmonton
Official Board Site →Vancouver School Board
British Columbia · Vancouver
Official Board Site →Winnipeg School Division
Manitoba · Winnipeg
Official Board Site →Halifax Regional Centre for Education
Nova Scotia · Halifax
Official Board Site →Simple Weather Data for Winter Planning
SnowDay Predictor brings current conditions, a short forecast, hourly weather and a transparent snow-day scoring method together on one page. The goal is to make the weather information easier to understand without presenting a forecast estimate as an official closure notice.
Plan Your Day, Understand the Forecast
Check winter weather before you leave home. Use the score for planning, then confirm local school, bus and weather announcements when conditions are changing.
Score
Forecast
Forecast
Coverage
How Accurate Is Our Snow Day Predictor?
The Snow Day Predictor does not publish a fixed accuracy percentage because forecast accuracy can vary by location, forecast lead time and the type of winter weather event. The score is a weather-based estimate, not a guarantee of a school closure.
Show accuracy details
What the Score Can Do
The score summarizes forecast snowfall, snow probability, minimum temperature and winter-weather conditions into a simple 0–100 estimate. It helps explain the weather factors behind the result.
Why Accuracy Varies
Weather forecasts can change as new observations and forecast updates become available. Local road conditions, school facilities, bus routes and board policies can also differ between communities.
How to Use the Result
Use the score as a winter-weather planning signal. For the final decision about school, buses or travel, check the latest official announcement from your school board, transportation provider and government weather service.
About Our Snow Day Prediction Model
Our snow day prediction tool is designed to help Canadian families prepare for winter weather. Predictions are generated using weather forecast data and local winter conditions. Results are estimates only and should not replace official announcements from school boards, transportation providers, or local authorities.
Weather Data Sources
Snow Day Predictor combines weather forecast and location information to provide a simple winter-weather planning estimate. Official government weather information should always be checked separately for current warnings and safety updates.
Environment and Climate Change Canada
Environment and Climate Change Canada provides official Canadian weather information, forecasts and weather warnings for communities across Canada.
Environment Canada Weather →WeatherAPI
Snow Day Predictor uses WeatherAPI for the current conditions and forecast information displayed by the tool, including temperature, snowfall, precipitation probability and hourly forecast data. Responses are cached for up to 15 minutes.
OpenStreetMap Nominatim
OpenStreetMap Nominatim is used for Canadian postal-code geocoding and reverse geocoding when location coordinates are needed for a weather search.
Frequently Asked Questions
What is a snow day predictor?
A snow day predictor is a weather-based planning tool that estimates the likelihood of disruptive winter conditions. This tool uses the available forecast data for the selected location and applies its published scoring method.
How do I check if school will be closed tomorrow?
Enter your city or Canadian postal code to see tomorrow’s snow day score, then confirm with your school board website and transportation provider. Only the board or its transportation provider can announce an official closure or bus cancellation.
How is the Snow Day Predictor score calculated?
The score uses four forecast factors: snowfall amount, chance of snow, minimum temperature and winter-weather conditions. Snowfall contributes up to 40 points, snow chance up to 30 points, freezing temperature up to 20 points and a winter-condition bonus up to 10 points.
Can this tool predict official school closures?
No. The score is a weather-based estimate, not an official closure announcement. School boards can consider road conditions, buses, local forecasts, school facilities and other operational factors. Always check your local board or school for the final decision.
What is the difference between a snow day and a bus cancellation?
A snow day means the school is closed. A bus cancellation means buses do not run on affected routes, but the school may stay open. Policies differ by school board and transportation provider.
Does freezing rain affect snow day decisions?
Freezing rain, sleet and ice can create hazardous travel conditions even when snowfall totals are limited. The predictor recognizes several winter-weather terms as part of its weather-condition factor, but it does not replace an official road, school or weather advisory.
What is wind chill and why does it matter?
Wind chill describes how cold the air can feel when wind is combined with the actual temperature. The hourly section shows temperature, snow chance, expected snowfall and wind, while the snow-day score separately uses forecast minimum temperature. Extreme cold can affect travel even without snow.
Can I search a Canadian postal code?
Yes. Canadian postal codes are supported. The tool first resolves the postal code through a geocoding service and then uses the resulting coordinates for the weather request.
Can I use my current location?
Yes. Select Use My Location and allow your browser to provide location access. The tool then requests weather for the detected coordinates and reverse-geocodes them to display a nearby place name.
How often is the forecast updated?
Weather data is requested from the forecast provider and cached for up to 15 minutes, so the page stays fast while still reflecting recent forecast changes. The last-updated time is shown in the current weather card.
Why does the score show 0% in summer?
The score is based on forecast snowfall, snow chance and cold temperatures. Outside the usual winter season most Canadian locations have no snow in the forecast, so the score stays near zero.
Does a high score guarantee a snow day?
No. A high score indicates that the forecast contains more of the winter-weather factors used by this model. It does not guarantee a school closure, bus cancellation or workplace closure.