Snow Day Predictor for South Portland, ME
South Portland is a smaller community in Maine. Will South Portland schools close or run late tomorrow? The live odds below are computed from tonight’s forecast for South Portland 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 South Portland schools close for snow?
South Portland sees roughly 60 to 120+ inches a winter. Nor’easters and lake-effect bands make for heavy, frequent snow. Districts here are snow-hardened, so it usually takes about 6"+ overnight, a coating of ice, or dangerous wind chill to cancel outright. A 2-hour delay is common for a 2–4" event or a slow morning plow.
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 South Portland snow day odds
- Population
- 25,556
- Coordinates
- 43.64°N, 70.24°W
- Climate region
- Northeast / New England
- Typical winter snowfall
- roughly 60 to 120+ inches a winter
South Portland is a smaller community of about 25,556 people that sits across the northern mid-latitudes, near 43.6°N in Maine. A winter here typically brings roughly 60 to 120+ inches a winter. Nor’easters and lake-effect bands make for heavy, frequent snow. Because the town falls in the Northeast / New England climate region, our model's closure threshold for South Portland is held to a high bar, because districts here are equipped for heavy winter weather and rarely cancel for routine snow.
The percentage at the top of this page isn't a static guess — it's rebuilt each night from South Portland'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. Districts here are snow-hardened, so it usually takes about 6"+ overnight, a coating of ice, or dangerous wind chill to cancel outright. A 2-hour delay is common for a 2–4" event or a slow morning plow.
Because a 2-hour delay clears a lower bar than an outright cancellation, you'll often see delay odds for South Portland 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 South Portland's odds the evening before school. Treat it as a well-informed second opinion for planning, never as an official Maine closing announcement.
Nearby snow day predictions
South Portland snow day FAQ
Will there be a snow day in South Portland tomorrow?
Tomorrow's odds for South Portland 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 South Portland, Maine schools?
South Portland sees roughly 60 to 120+ inches a winter. Nor’easters and lake-effect bands make for heavy, frequent snow. Districts here are snow-hardened, so it usually takes about 6"+ overnight, a coating of ice, or dangerous wind chill to cancel outright. A 2-hour delay is common for a 2–4" event or a slow morning plow.
Is this an official South Portland school closing list?
No — this is an independent, probabilistic estimate and is not affiliated with any South Portland-area district. Always confirm closures and delays with your school or district directly.