Environment Canada has issued a rainfall warning for Collingwood, Ontario, for Wednesday, March 11, 2026. Forecasters expect between 20 and 40 mm of rain to fall throughout the day, and these amounts could be higher if thunderstorms move through the area.
The weather agency is concerned about flooding because the ground is still frozen or very wet from the winter. Since the earth cannot soak up the rain quickly, water will likely collect on roads and in low-lying spots. There is also a risk of washouts occurring near local creeks and rivers.
Drivers should be careful and are urged not to drive through any water covering the road. The weather is expected to stay mild during the day but will turn much colder at night. Temperatures will drop to -5°C this evening, causing the rain to change into a mix of snow flurries.
