Updated for Winter 2026 · Canada

Snow Day Predictor Canada — Will School Be Closed Tomorrow?

Q: Is it going to be a snow day tomorrow?

Enter your city or postal code in the live forecast at the top of the page to get a probability score for tomorrow based on current weather and your region's past closures. For the clearest read, check the evening before and again early in the morning.

Q: Is the forecast accurate for every Canadian province?

The forecast works for any Canadian location and is most refined for regions with rich closure history, such as Ottawa and Barrie. Other regions still get a live weather-based score, and we add dedicated regional pages as local data grows.

Q: Why is my snow day predictor showing a low score in summer?

The tool reads live weather, so outside winter there is little or no snow risk and scores stay near zero. Snow day probabilities become meaningful during the Canadian winter season, roughly December through March.

Check the real-time chance that school will be closed or buses cancelled in your area. Enter your Canadian city or postal code to get an instant snow day probability built from live weather and past closure patterns.

🍁 Built for Canada ⚡ Live weather data 🆓 Free · no sign-up 🚌 Snow days & bus cancellations

What Is a Snow Day Predictor?

A snow day predictor is a free tool that estimates the chance your school will close because of snow, ice, or extreme cold. SnowDayCA combines live Canadian weather with how local school boards have acted in past storms to give you a clear percentage before any official announcement.

Every winter, parents, students, teachers, and bus drivers ask the same question the night before a storm: will there be school tomorrow? Instead of waiting for a 6 a.m. phone call, you can check your odds early. SnowDayCA is made specifically for Canada, so it understands metric units, Canadian postal codes, and the way provincial school boards make closure and bus-cancellation calls.

How Does the Snow Day Predictor Work?

The predictor pulls live weather for your location, compares it against the conditions that caused past school closures in your region, and turns the result into a single probability score from 0 to 100 percent.

1. Live Weather Data

We read current temperature, snowfall, wind chill, and precipitation for your exact city or postal code and refresh it as a storm develops.

2. Past Closure Patterns

A city with heavy lake-effect snow closes at different totals than a milder region. The model weighs your area’s history, not a one-size-fits-all number.

3. Probability Score

You get one clear percentage. A higher score means today’s conditions look a lot like past days when schools actually closed.

Want the full method? Read our guide on how closure probability is calculated for today and tomorrow, or see how the popular AccuWeather snow day calculator works and how accurate it is.

How Accurate Is the Snow Day Predictor?

Accuracy is highest in the 12 to 24 hours before a storm, when overnight weather is easier to forecast. Longer-range checks are useful for planning but carry more uncertainty. The score is a planning estimate, not an official closure notice.

Real closure decisions also depend on road conditions, bus-driver reports, and staffing that no weather score can fully see. That is why we always tell you to confirm with your school board before making firm plans. Curious how the tools stack up? Compare them in our breakdown of SnowDayCA vs SnowDayPredictor for 2026.

Snow Day vs Bus Cancellation: What Is the Difference?

A snow day means the school itself is closed and no one attends. A bus cancellation means buses do not run, but the school stays open for students who can get there another way. Bus cancellations are far more common than full closures.

❄️ Snow Day (Closure)

School is shut for everyone. This is the less common outcome during a typical Canadian winter storm.

🚌 Bus Cancellation

School stays open, but bus students are excused. This is the most frequent result of a moderate storm.

🏫 How Boards Decide

See the full process in how schools decide snow days in Canada.

How schools in Canada decide snow days: weather monitoring, road assessment, transportation check, and the final closure call — How Canadian school boards decide on a snow day or bus cancellation.

Snow Day Forecasts by Province and City

Winter is very different across Canada, so we build detailed local pages with regional school-board context and storm patterns.

🍁 Ontario Snow Day Predictor → 🏙️ Ottawa Snow Day Predictor (OCDSB, OCSB, CECCE) → ❄️ Sudbury Weather & Snow Day Guide → 📅 Snow Day Forecast for Today & Tomorrow →

Snow Day Predictor App, Map, and Calculator Options

You can check your snow day odds right here on the web with no download, or use a dedicated app for alerts. Both use the same core idea: live weather plus your district’s history.

If you prefer alerts on your phone, we compare the top choices in our roundup of the best snow day predictor apps for Canada across iOS, Android, and web. Prefer a browser tool? The live forecast at the top of this page works on any device, instantly and free.

Winter Safety and Snow Day Resources

A snow day is about more than a day off. These guides help families stay safe, warm, and productive when winter weather hits.

🩺 Shoveling Safety

Is shoveling snow dangerous? Risks, causes, and how to stay safe.

🎒 Snow Days & Learning

The impact of snow days on students’ learning in Canada.

💻 Snow Day vs Remote

Snow days vs remote learning: what teachers actually prefer.

🎨 Stay Productive

7 simple ways to stay productive during a snow day.

Why You Can Trust SnowDayCA

Canada-first and transparent. SnowDayCA was built only for Canadian winters. We use metric units, Canadian postal codes, and real provincial school-board behaviour instead of generic global numbers.

Live, sourced weather. Our forecast reads current conditions from professional weather data so your score reflects the storm as it actually develops, not a stale estimate.

Honest about limits. We clearly state that we are a planning aid, not an official source. Final closure and bus decisions always rest with your local school board. Read our full disclaimer and about page to learn how the tool is built, or contact us with questions.

Snow Day Predictor: Frequently Asked Questions

Are snow day predictors accurate?

Snow day predictors are most accurate in the 12 to 24 hours before a storm, where a good tool can closely match real closures. Accuracy drops for forecasts several days out. Treat the score as a strong planning estimate, and always confirm with your school board before making firm plans.

Is it going to be a snow day tomorrow?

To find out, enter your city or postal code in the live forecast at the top of this page. You will get a probability score for tomorrow based on current weather and your region’s past closures. For the clearest read, check the evening before and again early in the morning once overnight snow has actually fallen.

How does the snow day predictor work?

The predictor pulls live temperature, snowfall, wind chill, and precipitation for your location. It compares those conditions against the weather on days when your local schools closed in the past, then turns the match into a single probability score from 0 to 100 percent.

Is the snow day predictor free and safe to use?

Yes. SnowDayCA is completely free with no sign-up, no payment, and no account required. You simply enter a city or postal code to get a result. We do not store personal data to give you a forecast.

Is the forecast accurate for every Canadian province?

The forecast works for any Canadian location, and it is most refined for regions with rich closure history such as Ontario cities like Ottawa and Barrie. For city-specific detail on regions like Sudbury, our dedicated regional guides go deeper than this general FAQ. Milder or lower-data regions still get a live weather-based score, and we add dedicated regional pages as local data grows.

What is the difference between a snow day and a bus cancellation?

A snow day means the school is closed and no one attends. A bus cancellation means buses do not run, but the school stays open for students who can travel another way. Bus cancellations happen far more often than full closures during a typical storm.

Can I check the forecast for a specific day like Monday?

Yes. The live tool reflects current conditions and the next 24 hours, which is the most reliable window. For a day further out, such as an upcoming Monday, use it for early planning and recheck the night before, since forecasts sharpen as the storm gets closer.

Why is my snow day predictor showing a low score in summer?

The tool reads live weather, so outside of winter there is little or no snow risk and scores stay near zero. Snow day probabilities become meaningful during the Canadian winter season, roughly December through March.