On Wednesday, March 11, 2026, residents in Guelph, Ontario, should prepare for potential flooding as heavy rain moves through the region. Environment Canada issued a yellow warning for the city, forecasting 20 to 40 millimetres of rain for the area, including Erin and southern Wellington County.
The ground is currently frozen or soaked from seasonal snowmelt, which means it cannot easily absorb the new rainfall. This situation is expected to cause water to pool on local streets and in low-lying spots across the community. Some areas might see even higher amounts of water if thunderstorms develop during the day.
Local authorities advise drivers to avoid going through flooded sections of the road and to stay away from low-lying areas where water collects. It is also important to watch for washouts near rivers, creeks, and culverts, where rushing water can damage the ground or roads.
This weather event is part of a series of storms moving through southern Ontario. Organizations like the Grand River Conservation Authority and the Ontario Ministry of Natural Resources monitor these conditions to help keep the community safe during heavy spring rains.
