School Snow Day Calculator
Lookup your city or 5-digit ZIP code below to see the mathematical likelihood of school delays or closures.
Calculate Snow Day Chance
Enter your ZIP code or City to get real-time school closure predictions based on live NOAA winter forecasts.
Understanding the Closure Probability
Low Risk (0% - 20%)
Buses and staff commutes are unlikely to be impacted. Normal school schedules should be expected. Roads may be wet, but temperatures are warm enough to prevent freezing.
Moderate Risk (21% - 50%)
Winter weather is approaching. While a full snow day is uncertain, minor delays (e.g. 2-hour delays) or early dismissals are possible. Keep an eye on local news channels.
High Risk (51% - 80%)
Road conditions will likely deteriorate overnight. Freezing ice or heavy snow makes driving dangerous. Prepare child care alternatives as school closures are highly probable.
Extreme Risk (81% - 99%)
Widespread heavy snow, blizzards, or severe ice conditions are forecast. Roads will be unsafe for school buses. Cancellations are virtually guaranteed.
Calculator Quick Instructions
Simply enter your 5-digit ZIP code in the calculator form and click "Calculate Chance". The calculator runs the local coordinates against NOAA's live Doppler radar forecasts and models, checking for snow, ice, wind, and temperature variables.
If you enter a city name (like "Columbus, OH" or "Denver"), the search will match the corresponding latitude and longitude in our database, then fetch local school district parameters to provide customized closure probabilities.