A new weather system will bring additional thunderstorms and heavy rain to Greater Montreal on Tuesday, June 21, 2026, targeting the same neighborhoods that were already affected by Saturday's downpours. Meteorologists indicate that the incoming storms will move across the region throughout the day, adding to the precipitation that fell on June 20.
Saturday's rain event produced abundant rainfall across the city, leading to damage in several neighborhoods. Streets were inundated, and some homes and businesses reported water intrusion as the ground became saturated. Local services responded to the conditions, and the impact was noted in multiple parts of the metropolitan area.
The forecast for Tuesday calls for repeated thunderstorm activity accompanied by heavy rain bands that could intensify the existing wet conditions. The system is expected to generate strong downdrafts and gusty winds as it tracks over the island, although specific wind speeds were not disclosed. Rainfall totals are projected to exceed the amounts recorded on Saturday, raising the risk of further flooding in low‑lying zones that have not yet fully drained.
Authorities are monitoring the situation as the storms develop, and residents in the affected districts are advised to stay informed about updates from weather services. The combination of saturated soils and new precipitation may prolong recovery efforts from the previous day's damage, and the additional rain could complicate ongoing clean‑up operations throughout Greater Montreal.