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Live Winter Storm Forecast Tool
Punch in your ZIP code. We'll crunch the snow, ice, and timing data so you know whether to set an alarm — or set your alarm clock outside a window, backwards.
Free tier works fine. Get one at openweathermap.org/api. New keys can take up to a couple hours to activate. Your key stays in this browser tab only — it's never saved to disk.
Enter a valid postal/ZIP code so we can check the sky above it.
The Data Behind The Guess
Expected Snowfall
0.0"
Awaiting forecast data…
Ice Accumulation
0.00"
Awaiting forecast data…
Storm Timing
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Awaiting forecast data…
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Crowdsourced Report
1,842 parents have reported in
Thanks for the report — updated live!
Good To Know
When you add a free OpenWeather API key, we pull the next 24 hours of real forecast data for your postal code — expected snowfall, freezing rain, and overnight low temperatures — and turn that into a single probability score. Without a key, we show a simulated estimate instead, clearly labeled, so it's always obvious which one you're looking at.
No. SnowDayPredictor is an entertainment and estimation tool, not affiliated with any school district. Individual districts make closure decisions based on factors we can't see — road treatment schedules, bus routes, staffing — so always confirm with your school's official announcement, app, or website.
A thin glaze of ice on roads and sidewalks is often more dangerous — and harder to clear — than several inches of dry snow. That's why our model weights freezing rain heavily, even in small quantities.
Yes — pick your country from the dropdown next to the postal code field. We support postal/PIN codes for over 20 countries through OpenWeather's geocoding system, though accuracy is best for larger towns and cities.
Know someone hoping for a snow day? Share the forecast.