Snow Day Predictor
The chance of a snow day for each of the next five school days.
Enter your ZIP code for this week's snow day predictions: tomorrow's closure and delay chance, and a five-day outlook with a confidence level for each day.
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Snow by hour
From the National Weather Service forecast, updated hourly. Estimate only. Your district makes the call.
Prediction vs. forecast
Weather forecasts answer "how much snow?" The predictor answers "will that close school here?" It takes the National Weather Service's snow, ice and wind chill forecast for your ZIP and compares it with your area's normal winter (NOAA climate normals), because districts close for what is unusual locally, not for a fixed number of inches.
How confident is each day?
| Day | Confidence | Why |
|---|---|---|
| Next school day | High | Snow, ice and wind chill forecast for the exact hours that matter. |
| Day 2 | Medium | Same data, but storms often shift in the last day. |
| Days 3–5 | Low | Beyond the snow-amount forecast: precipitation chance and temperature only, capped at 50%. |
Snow day predictor questions
How far ahead can you predict a snow day?
About three days. The National Weather Service forecasts snow and ice amounts roughly 60–72 hours ahead, so the first two or three school days use real snow and ice totals. Days 4 and 5 are an outlook from the chance of precipitation and temperature, capped at 50% and marked low confidence.
Why did the prediction change overnight?
Because the forecast changed. Storm tracks often shift by tens of miles in the last 24 hours, and a shift that size can move a ZIP code from heavy snow to rain. We update every hour from the afternoon until morning, so the latest number is the one to trust.
Is a snow day predictor the same as a forecast?
No. A forecast says how much snow will fall; the predictor estimates how likely your district is to close because of it, using what is normal for your area. The same 4 inches is a big deal in Nashville and an ordinary morning in Buffalo.