Snow Day Predictor
Know tonight if tomorrow might be a snow day.
How Snow Day Predictor Works
In just a few steps, you can see your local snow day chance for tomorrow.
Enter Your Postal Code
Type any Canadian postal code or FSA into the tool. We use it to find the approximate region around where you live or attend school, without asking for your name, email, or other personal details.
We Gather Tomorrow’s Weather Forecast
Snow Day Predictor uses real-time forecast data from Open-Meteo, including snowfall totals, temperature, wind speed, and precipitation amounts.
Evaluate Conditions That Trigger Closures
The tool compares the forecast with conditions that often lead to cancelled buses and school closures, such as heavy overnight snow, extreme cold, ice risk, and poor visibility.
Show a Clear Percentage
All of that information is combined into a single, easy-to-understand percentage from 0% to 100%, along with a visual gauge. Higher percentages mean conditions are more similar to days when schools tend to close.
How We Estimate Your Snow Day Probability
Our predictions aren’t random. They’re based on a rules-driven model designed around how Canadian winter storms typically impact school operations.
Region-Based Mapping
We start by turning your postal code into an approximate region. This lets us align your forecast with the school districts and road networks that matter most to you, while keeping the lookup anonymous.
Key Weather Signals We Watch
The model focuses on a handful of critical signals:
• Expected snowfall amounts
• Daytime and overnight temperatures
• Wind speed and gusts
• Precipitation type and weather codes that indicate heavy snow or mixed winter storms
Weighted Scoring
Each weather signal contributes differently to the final score. For example, heavy snowfall and strong winds significantly increase the probability, while warmer temperatures that encourage melting reduce it.
Interpretable Results, Not a Black Box
The goal is to give you a clear, practical estimate you can use. You see a straightforward percentage that reflects how closely tomorrow’s conditions match typical snow-day scenarios in your region.
Canadian Snow Day Patterns
Snow days don’t look the same from coast to coast. Different regions have different thresholds for cancelling buses or closing schools, and our model is tuned with those patterns in mind.
Ontario & Quebec
In much of Ontario and Quebec, heavy overnight snowfall combined with blowing snow is a common reason for bus cancellations and school closures, especially in rural or semi-rural areas where routes cover long distances. Many families use our snow day predictor ontario view during major storms to get a feel for how likely it is that schools in their part of the province will be closed.
Prairie Provinces (MB, SK, AB)
On the Prairies, extreme cold is often just as important as snowfall totals. Wind chill warnings, blizzard conditions, and drifting snow can make roads unsafe even when accumulations don’t seem extreme.
Atlantic Canada
In Atlantic provinces, freezing rain and ice are major factors. Moderate snowfall combined with ice buildup on roads and power lines can lead to closures even when the totals don’t look dramatic on paper.
British Columbia
Coastal BC sees fewer snow days, but when snow falls quickly on steep hills and untreated streets, school boards may act quickly. In the Interior and Northern BC, drifting snow, extreme cold, and changing mountain conditions play a larger role in decisions.
Who Uses Snow Day Predictor?
Snow days affect more than just students. Our tool is designed to support everyone who needs to plan around winter weather.
For Parents and Guardians
Plan Your Day with Confidence
Use the prediction the evening before to decide whether to arrange childcare, adjust work-from-home plans, or prepare for an early morning drive in difficult conditions.
For Students
Know if You Can Sleep In!
Curious if you’ll be bundling up for school or sleeping in? Check the forecasted snow-day percentage to help you decide whether to get that assignment done tonight or set a backup alarm.
For Teachers and School Staff
Prepare Lesson Plans Accordingly
A high predicted probability can be a useful signal to prepare flexible lesson plans, online materials, or alternate activities in case a closure or bus cancellation is announced.
Test Your Snow Day Knowledge
Think you know what it takes for a snow day? Take our quick quiz and find out!
Key Features of Snow Day Predictor
Experience advanced technology designed for your ease and confidence.
Real-Time Forecast Integration
We use up-to-date weather data so that predictions reflect the latest forecasts, not yesterday’s conditions.
Canada-Wide Coverage
From major cities to smaller communities, you can check conditions for any Canadian postal code or FSA.
Fast, Simple Interface
The tool is designed to load quickly and work smoothly on phones, tablets, and desktops. Type your postal code, tap the button, and your result appears within seconds.
Clear Visual Gauge
A visual gauge and bold percentage make it easy to understand the prediction at a glance, even if you’re quickly checking on your phone before bed.
Free to Use
Snow Day Predictor is free for Canadian families, students, and educators. You can check as often as you like throughout the winter season.
Privacy-First Design
We don’t ask for your name, email, or account. Postal codes are used only to estimate regional conditions and are not tied to individual identities.
Winter Weather Tips & Insights
Want to go deeper than the percentage? Our articles explore how snow-day decisions are made, how to stay safe during storms, and how to prepare your home and family for winter.
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What Weather Apps Miss: The Subtle Winter Signals Only Forecasters Notice Before a Disruptive Day
Most Canadians rely on weather apps to plan their mornings, especially during winter. These apps are helpful for quick checks, but they often miss the subtle signals that can turn a calm…
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The Snow Day Timing Trap: Why the Hour a Storm Arrives Matters More Than the Amount
If there is one lesson every Canadian parent eventually learns, it is that winter has its own timing. Two storms can deliver nearly the same amount of snow, yet only one will…
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When Winter Behaves Strangely: How Microclimates Shape Snow Day Surprises Across Canada
If you have lived through even one Canadian winter, you already know the country does not follow a single weather rulebook. Some days feel downright sneaky. One neighbourhood wakes up buried in…
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Top Winter Gear for Staying Safe and Warm on Snow Days in Canada
When Canadian snow days arrive, they don’t just bring school closures and icy roads—they bring the biting cold that makes safety and comfort a top priority. From my experience as a Certified…
Frequently Asked Questions
Everything you need to know about our Snow Day Predictor.
Check Your Snow Day Chances Tonight
Don’t wait until the early morning announcement to start making plans. Use Snow Day Predictor to see how likely it is that winter weather could disrupt school in your area so you can decide how to prepare.
Free, simple, and built for Canadian winters — check your chance of snow day in seconds.