Snow Day Predictor for Wilmington, DE
Wilmington is a mid-size city in Delaware. Will Wilmington schools close or run late tomorrow? The live odds below are computed from tonight’s forecast for Wilmington with our transparent snow-day model — no account, no guesswork hidden behind the number.
Enter your town to see the odds of a snow day or 2-hour delay tomorrow — with the exact weather factors behind the number.
Do Wilmington schools close for snow?
Wilmington sees around 5 to 20 inches a winter. Wintry mix and ice — not deep snow — drive most school closings. With fewer plows and hilly bus routes, 1–3" or any freezing rain is often enough to cancel. Icy bridges and overpasses are the usual reason for a late start.
The percentage above updates with tonight's forecast — check back as a storm approaches, since timing and totals shift right up to the morning call.
Reading the Wilmington snow day odds
- Population
- 70,898
- Coordinates
- 39.75°N, 75.55°W
- Climate region
- Upland South / Mid-Atlantic
- Typical winter snowfall
- around 5 to 20 inches a winter
Wilmington is a mid-size city of about 70,898 people that sits in the mid-latitudes, near 39.7°N in Delaware. A winter here typically brings around 5 to 20 inches a winter. Wintry mix and ice — not deep snow — drive most school closings. Because the town falls in the Upland South / Mid-Atlantic climate region, our model's closure threshold for Wilmington is tuned to close fairly easily, since snow-clearing equipment here is limited and roads ice quickly.
The percentage at the top of this page isn't a static guess — it's rebuilt each night from Wilmington's own Open-Meteo forecast. The model reads seven signals from the overnight-into-morning window: total snowfall, whether any of it is timed for the 2–6 a.m. commute, freezing rain or sleet, the coldest air temperature, the wind chill, the peak wind, and how much snow is already on the ground. With fewer plows and hilly bus routes, 1–3" or any freezing rain is often enough to cancel. Icy bridges and overpasses are the usual reason for a late start.
Because a 2-hour delay clears a lower bar than an outright cancellation, you'll often see delay odds for Wilmington even when the closure odds stay modest — that gap is the model flagging a borderline morning. The estimate shifts as the forecast firms up overnight, so it's worth re-checking Wilmington's odds the evening before school. Treat it as a well-informed second opinion for planning, never as an official Delaware closing announcement.
Nearby snow day predictions
Wilmington snow day FAQ
Will there be a snow day in Wilmington tomorrow?
Tomorrow's odds for Wilmington are shown live above, computed from tonight's forecast with our transparent model. Treat it as a well-informed estimate and confirm with your district.
How much snow does it take to close Wilmington, Delaware schools?
Wilmington sees around 5 to 20 inches a winter. Wintry mix and ice — not deep snow — drive most school closings. With fewer plows and hilly bus routes, 1–3" or any freezing rain is often enough to cancel. Icy bridges and overpasses are the usual reason for a late start.
Is this an official Wilmington school closing list?
No — this is an independent, probabilistic estimate and is not affiliated with any Wilmington-area district. Always confirm closures and delays with your school or district directly.