Snow Day Calculator: Check school closures & opening by using real weather data

Get more accurate prediction from our advanced weather tool, whether the school will be closed or not tomorrow? Don’t wait for call just enter your zip code to see the chances of snow day tomorrow in your city area.

Proton Reader provides you the possible results which are based on the current weather information. Only your local school district decides if schools will open or close. The amount of snow that shuts schools down in Texas might just be a normal winter day in Canada or Minnesota.

About snow day calculator

The calculator was created by David Sukhin in 2007 as a side project when he was in the middle school. The main purpose for creating this tool is to check the chances of school closure due to the ice and snowfall. In 2010 this tool was converted to automatically weather predictor by fetching the Weather Service. The snow day predictor tool transform from the simple manual input to the live data, which is retrieved from the National Weather service and now serves the results to 5 million users. 

Snow Day Calculator by protonreader is an online tool that predicts the likelihood of school being closed due to snow or other severe winter conditions. It is mainly used by students, teachers, parents and bus drivers to see the chances of school closure tomorrow.

It works as a smart prediction system that processes multiple weather factors through AI algorithms to deliver instantly the predicted chances of schools closing or delaying tomorrow, for any place in the US or Canada you choose. 

This AI-Powered tool performs hyperlocal weather analysis by combining live weather data from NOAA and weather.gov platforms by applying machine learning techniques. It examines historical patterns of district decisions alongside current forecast model projections to ensure accuracy.

Could school be cancelled tomorrow? The School Closure Predictor just not calculate snowfall totals, it evaluates icy conditions, freezing temperatures, storm intensity, heavy snow depth and freezing rain scenarios that Canadian specific conditions often present differently than southern United States regions experience during winter storms.

Why You love it?

This tool has all the features that you need to calculate the probability of snow day tomorrow with precision. The advanced snow day prediction system just not look at current weather conditions, it navigates forecasted weather conditions with historical closure patterns across your specific geographic area. As we know, winter temperatures in Canada are much more severe, often reaching -7.5°C (18.5°F) or lower, compared to an average of 0°C (32°F) in many US regions during the same period.

Canada high snowfall cities 2026

  • Quebec City: 2 to 5 cm daily snowfall (storm days: 10 to 20 cm)

  • Montreal: 1 to 4 cm daily snowfall (heavy snow: 8 to 15 cm)

  • St. John’s: 3 to 7 cm daily snowfall (big storms: 20+ cm)

  • Toronto, ON: 2 to 4cm daily snowfall (major storms: 25+cm)

USA high snowfall cities 2026

  • Buffalo, New York: 2 to 6 cm daily snowfall (lake effect snow: 15 to 30 cm in one day)

  • Syracuse, New York: 2 to 5 cm daily snowfall (storm days: 10–25 cm)

Note

  • Daily snowfall depends on the weather

  • Some days have light snowfall and some have heavy.

7.5asaw

ai-technology

Smart AI Technology

Our calculator analyzes weather history to predict snow day chances

Highly Accurate​

Highly Accurate

It uses advanced formula for more precise & reliable outcomes

hyperlocal prediction

Hyperlocal Prediction

Check chances of snow day of any city or district across US, UK or Canada just one click.

Advanced Weather Analysis​

Advanced Weather Analysis

Enter your city name or zip code to check school closure with real-time weather forecast.

History-Based Insights

History-Based Insights

Uses historical closure trends and today’s conditions to provide perfect insights

Free Forever

Free Forever

Enjoy unlimited free snow day calculator access without paying a cent

How Does Snow Day Predictor Work?

I know it is really difficult for parents and school administrators to predict the chances of snow day tomorrow. Therefore, school snow day calculator uses live weather data and historical trends to help everyone plan ahead. Students, parents and teachers simply input their ZIP code or Postal code to generate fast results. What is the percentage of a snow day tomorrow? It provides snow day predictions and outcomes that help you manage the uncertainty of severe weather, so you never left confused.

1. Enter a city or zip code

Enter your ZIP or postal code into the search bar. The system accept only valid ZIP code or postal code from major regions including New York, Michigan, California, Illinois, Montreal, Alaska, Nova Scotia, Boston, Ontario, Calgary, Toronto, Ottawa, Manitoba, British Colombia, Alberta, Quebec and etc

 
2. One click to check result

Once you entered your location e.g, if you want to check snow day predictor ontario tomorrow and see how the tool instantly pulls current weather data from multiple meteorological sources and calculates your snow day chances using sophisticated algorithms.

3. View your personalized snow report

After you submit your location, the tool will display a detailed personalised snowfall score that goes far beyond basic weather predictions. For each day in the forecast, you’ll find important details including the exact date, expected weather conditions such as snow, rain or cloudy skies along with estimated snowfall measured in centimeters.

 
4. Calculates Apparent Temperatures

The system examines expected snow depth against regional thresholds for closure decisions, calculates apparent temperatures and wind chill effects to determine safety risks, and analyzes the timing of weather events and their impact on commute safety.

5. Share Your Results

You can Easily share your prediction on popular platforms like Facebook, Twitter, and WhatsApp, or simply copy the results with one click to send via text or email.

 

What is the chance of a snow day tomorrow?

In the old versions of cold day calculator it just give estimated chance of snow as 18% without explaining the reason why? Rather than newer version provides transparency about factors as expected snowfall, timing of the storm and how snow interacts with local infrastructure capacity.

This snow predictor helps you plan for tomorrow. More than 60% of snow day decisions depend on whether roads and buses are safe not just on how much it snows.

The snow probability calculator interface improvements represent the most visible changes like clearer explanations. This is an accurate estimate, not certainty or warnings. Factors like freezing rain and icy roads often impact school closures more than simple snow depth.

Marginal improvements in incorporating past trends, storm timing nuance and emergency management decisions but still no crystal ball that accounts for the exact amount of complexity involved when administrators make last minute decisions based on information that varies minute by minute.

Snow Day Calculator

Frequently Asked Questions

What are the chances of a snow day tomorrow?

Snow day chances depend on hyperlocal weather conditions and an estimation of school district policies. Our cold day calculator analyzes how road conditions, emergency management decisions and snowfall forecasts interact to determine the probability of a school closure for tomorrow.

How Accurate is the Snow Day Predictor?

The AI-Powered Snow Day calculator formula gives hourly updates that are about 82% to 92% accurate. People often ask how accurate is the snow day calculator? But for forecasts 3 to 5 days out, it’s more of an estimate than a guarantee. Snowfall forecasts depend on precise conditions where temperature, humidity, and wind patterns create a chaos factor that makes long-range forecasts feel more like accurate guesses than accurate science.

What makes a snow day predictor reliable?

The question arise that Is snow day calculator accurate? I honestly tell you that a reliable predictor considers factors like:

  • Past storm trends

  • Timing of snowfall (especially morning vs. evening)

  • Expected accumulation

  • Road conditions (ice is often more dangerous than snow)

  • Local infrastructure (plows, salt trucks, etc.)

What’s the best way to track snow day chances accurately?
  • Monitor NWS alerts and advisories

  • Watch local weather reports

  • Track radar and storm updates frequently

  • Learn from experienced local predictors

  • Understand your district’s history of closures

How do meteorologists predict snow days?

They use advance technology to crunch historicla weather data by analyzing temperature, wind, humidity, etc. They practices real-time updates from the National Weather Service. Regional differences and microclimates

Which one is the Most Reliable Source for Snow Day Announcements?

The Weather Channel remains your best source for local weather news, delivering forecasts about the chances of school getting cancelled tomorrow alerts and notifications in accordance with what the National Weather Service (NWS) determines for your particular area.

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