Ontario Center Snow Day Calculator
Will Ontario Center close tomorrow? Check the odds.
Powered by NOAA / National Weather ServicePowered by NOAA / National Weather ServiceWill Ontario Center close tomorrow? Check the odds.
Powered by NOAA / National Weather ServiceOntario Center is a school in Ontario, California, part of Cucamonga Elementary Schools. The forecast above uses the school's own coordinates, so it reflects conditions at this campus rather than an average across the wider area.
Closure decisions for Ontario Center are almost always made at the district level. If Cucamonga Elementary Schools closes, this school closes with it — so the district-wide forecast is usually the number that matters (see the Cucamonga Elementary Schools forecast).
Urban districts usually have the best-treated roads and the shortest bus routes, so they tend to hold out longer before closing — but they also weigh sidewalk conditions and transit reliability for students who walk or ride public transport.
We score the live forecast at this location against the factors that drive closure calls: snowfall total and intensity, when the heaviest accumulation lands relative to the morning commute, ice and freezing rain, wind chill, and how confident the forecast models are. You get a probability for a full closure, a two-hour delay, and an early dismissal.
This is an independent forecast, not an official announcement. Confirm any closure with Cucamonga Elementary Schools before acting on it.