On top of the torrential downpour, Dunville, Caledonia and Haldimand residents can expect high winds.
Environment Canada has issued a wind warning for Dunville, Caledonia and Haldimand. Very strong wind gusts of 100 km/h are expected overnight into Sunday morning.
The strong winds are expected to ease down come noon on Sunday.
The high winds may also cause isolated power outages.