Get accurate snow day predictions for your school district based on real-time weather data
School districts consider multiple factors including temperature, snowfall amount, wind conditions, road conditions, and timing of the storm when making closure decisions.
Most schools close when temperatures drop below -10°F with wind chill, or when ice conditions make transportation dangerous for students and staff.
Bus routes and road conditions are primary concerns. Even light snow can cause closures if it creates hazardous driving conditions during school hours.
When a storm hits affects closure decisions. Overnight snow allows time for plowing, while morning storms may cause delays or early dismissals.
Wondering whether school will be cancelled tomorrow? Our snow day calculator analyzes real-time weather conditions for your exact location to give you an accurate prediction of school closures. Thousands of students across the United States rely on this free tool every winter to plan ahead and stay prepared.
One of the most common questions we receive is "how accurate is snow day calculator" predictions. Our tool achieves 75-85% accuracy by combining multiple real-time data sources: temperature readings, snowfall accumulation forecasts, wind speed measurements, visibility conditions, and regional school closure patterns. Unlike a basic weather forecast, our snow day calculator factors in how different regions respond to winter weather — southern states tend to close schools at lower snow thresholds than northern states that are better equipped for winter conditions.
Searching for an AccuWeather snow day calculator? While AccuWeather provides excellent weather forecasts, our dedicated snow day calculator goes a step further by translating raw weather data into a school closure probability percentage. We take AccuWeather-grade weather information and apply school-specific decision models that account for temperature thresholds, transportation safety, storm timing, and your region's historical closure patterns to deliver predictions you can actually use.
So, does snow day calculator work? Here is exactly what happens when you enter your ZIP code:
Students and parents frequently ask "is snow day calculator accurate" before relying on our predictions. Here is what you should know about accuracy:
No snow day calculator can be 100% accurate because school closure decisions ultimately rest with local superintendents and school boards who may weigh factors our algorithm cannot measure, such as building heating issues, staffing shortages, or localized road conditions. That said, our tool provides a strong data-driven estimate that helps you plan your evening and morning routine.
Weather forecasts are most accurate 12-24 hours out. Check our snow day calculator between 6-10 PM for the best prediction of tomorrow's school status.
Weather can shift overnight. Run the calculator again early morning (5-6 AM) when school districts are making their final decisions.
Weather varies by location. For the most accurate result, use the ZIP code of your school rather than your home if they are in different areas.
Use our snow day calculator alongside your school district's notification system for the most complete picture of potential closures.
Our snow day calculator achieves 75-85% accuracy by analyzing real-time temperature, snowfall, wind speed, visibility, and regional school closure patterns. Accuracy improves when you check within 24 hours of the predicted snow event. While no tool can guarantee 100% accuracy since closure decisions are made by local school districts, our multi-factor algorithm provides a reliable data-driven estimate. Learn more about our accuracy methodology.
Yes — is snow day calculator accurate depends partly on your location, and our tool accounts for this. We apply regional multipliers: southern states (1.5x) close schools more readily, while northern states (0.8x) have better winter infrastructure. Mountain and western states have their own calibrations. This means the calculator is tuned for your specific region's school closure tendencies. See regional accuracy details.
Does snow day calculator work? It pulls live weather data for your ZIP code and runs it through a scoring algorithm that weighs temperature, snow accumulation, wind, visibility, and storm timing — the same factors school superintendents consider. The result is a probability percentage from 0-95%. Thousands of students use it each winter to anticipate school closures before official announcements. See how the algorithm works.
Enter any valid US ZIP code to get weather data and snow day predictions for that area. The snow day calculator adjusts thresholds based on regional weather patterns and local closure tendencies across all 50 states. Whether you are in Texas or Minnesota, the tool adapts its predictions accordingly. See our coverage areas.
While the AccuWeather snow day calculator provides general weather forecasts, our tool is specifically built for predicting school closures. We take weather data similar to what AccuWeather provides and apply a specialized school-closure algorithm with regional adjustments, transportation safety scoring, and storm timing analysis to deliver a clear probability percentage.
For the most accurate prediction, check the snow day calculator between 6-10 PM the evening before, then again at 5-6 AM when school districts finalize their decisions. Weather forecasts are most reliable within the 24-hour window, so same-day evening checks give you the strongest prediction. Get timing tips.