Launching today
Snow Day Forecaster
The chance your school closes tomorrow, by US ZIP code
2 followers
The chance your school closes tomorrow, by US ZIP code
2 followers
Enter a US ZIP code and see the percentage chance your school closes or goes remote tomorrow and over the next few days. The model was trained on how 20 large districts actually decided in winter 2025-26, then back-tested on 1,345 school days (Brier score 0.033). It weighs snow and ice on the ground, new frozen precipitation, wind chill and region. Free, no sign-up, and your ZIP stays in your browser.
Hi Product Hunt! I built Snow Day Forecaster because most snow day calculators never show how accurate they are.
This one is trained on how 20 large US districts actually decided in winter 2025-26, and the numbers are back-tested: across 1,345 school days, when it said 50-70%, schools closed or went remote 62% of the time. The full calibration table and every closure we tracked (with sources) are on the site.
One thing the data surprised us with: 64% of the closure days we tracked had less than an inch of new snow in the 48 hours before. Ice, leftover snowpack and wind chill matter more than the headline snowfall.
It's free, there's no account, and your ZIP code stays in your browser. It's a regional estimate, not an announcement; your district still makes the call.
Feedback I'd love from anyone in snow country this winter: did the odds match what your district actually did?