Mt Harrison High School Snow Day Calculator
Will Mt Harrison High School close tomorrow? Check the odds.
Powered by NOAA / National Weather ServicePowered by NOAA / National Weather ServiceWill Mt Harrison High School close tomorrow? Check the odds.
Powered by NOAA / National Weather ServiceMt Harrison High School is a high school in Heyburn, Idaho, part of Minidoka County Joint District. 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 Mt Harrison High School are almost always made at the district level. If Minidoka County Joint District closes, this school closes with it — so the district-wide forecast is usually the number that matters (see the Minidoka County Joint District forecast).
Town districts sit between urban and rural conditions: main routes are usually cleared early, but outlying pickups can stay hazardous well past sunrise.
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.
Idaho averages about 44 inches of snow per year. Mountain communities and valley districts have very different closure thresholds. Boise closes less often than northern Idaho.
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 Minidoka County Joint District before acting on it.