Grant Union Junior/Senior High School Snow Day Calculator
Will Grant Union Junior/Senior High School close tomorrow? Check the odds.
Powered by NOAA / National Weather ServicePowered by NOAA / National Weather ServiceWill Grant Union Junior/Senior High School close tomorrow? Check the odds.
Powered by NOAA / National Weather ServiceGrant Union Junior/Senior High School is a high school in John Day, Oregon, part of John Day SD 3 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 Grant Union Junior/Senior High School are almost always made at the district level. If John Day SD 3 Schools closes, this school closes with it — so the district-wide forecast is usually the number that matters (see the John Day SD 3 Schools forecast).
Rural districts run the longest bus routes over the least-treated roads, so they typically close at lower snowfall totals than nearby urban districts — often on forecasts that would leave a city district open.
High schools start earliest, so they feel a storm before the rest of the district does — the first buses often roll while roads are still being treated. That earlier start time is one reason a district watching a morning storm may call the day off entirely rather than run a delay.
Oregon averages about 5 inches of snow per year. Portland and the Willamette Valley close at very low thresholds — any snow or ice accumulation on roads typically triggers closures.
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 John Day SD 3 Schools before acting on it.