Snow Day Predictor MonctonWill school be cancelled tomorrow in Moncton?

Type your Moncton postal code or "Moncton, New Brunswick" into the predictor above. Anglophone East School District covers all English-language public schools across Greater Moncton, Riverview, Dieppe, Shediac, Sackville, and Sussex. The district posts closure decisions by 6:00 am, and our predictor gives you an advance probability the night before based on the overnight forecast for your exact location.

Not always. Anglophone East and Francophone Sud share the Moncton geography but make their own weather calls. On clear major storms they almost always agree, but on borderline days they often diverge, with Francophone Sud sometimes closing when Anglophone East runs and the other way around. The split usually traces back to Francophone Sud’s broader rural catchment, where bus routes run longer and road conditions matter more. Our predictor returns probabilities for both districts when the call looks uncertain.

Riverview and Dieppe are both inside the same Anglophone East and Francophone Sud catchments as Moncton itself, so closure decisions are district-wide and apply across the three communities together. That said, the Petitcodiac valley microclimate means snowfall totals can vary noticeably between downtown Moncton, the Riverview hills, and the Dieppe plateau near the airport. Enter your specific postal code in the predictor for the forecast at your exact coordinates.

Saint John sits on the Bay of Fundy where Atlantic Ocean influence keeps winter temperatures milder and pushes more precipitation toward rain or freezing rain. Moncton, 150 km northeast and inland, sits between the Fundy and Northumberland Strait, with the Petitcodiac valley producing cold-air pooling that favours snow accumulation. The same Atlantic low pressure system can drop 40 cm of snow on Moncton while Saint John sees 10 mm of rain. School closure patterns reflect this, with Moncton districts closing for snow events that leave Saint John open.

Easterly and northeasterly winds blow across the Northumberland Strait toward southeastern New Brunswick. The relatively warm Strait waters add moisture to those onshore winds, which then drop snow or freezing drizzle on the Moncton side. This is why Moncton can close schools in storms that look modest from inland weather radar, the precipitation builds steadily over many hours of onshore flow rather than arriving in one sharp burst. The same effect produces closures for Moncton when Fredericton, just 175 km west, sees little.

The Petitcodiac River runs through Moncton in a shallow valley that collects cold air on clear nights with light winds. Cold air drains off the surrounding higher ground and pools along the river bottom, leaving downtown Moncton noticeably colder than Riverview’s hills or the airport plateau in Dieppe. The practical impact for snow days is precipitation type. A storm arriving as rain at the coast can fall as snow, ice pellets, or freezing rain in the valley, and the same storm can leave 15 cm in downtown Moncton while Riverview sees half that.

Post-tropical storm Dorian struck the Maritimes in September 2019 with hurricane-force winds, prolonged power outages, and multi-day school closures across both Anglophone East and Francophone Sud. While Dorian was not a snow event, it set the Moncton benchmark for tropical and post-tropical systems hitting the Maritimes in fall and early winter. Whenever a tropical system tracks toward Atlantic Canada, NB Power, both school districts, and local emergency management explicitly reference the Dorian response plan. Our forecast accounts for wind and post-tropical impacts the same way it accounts for nor’easter snowfall.