A special weather statement in effect for all of Niagara as another round of significant April rain is on the way.
Environment Canada says a low pressure system from the American Midwest will track just south of the Great Lakes tomorrow.
Periods of rain will spread across the region starting tonight.
Significant widespread rainfall amounts of 20 to 30 mm are likely by tomorrow night.
Some areas may exceed 40 mm.
Colder air with brisk northerly winds is forecast tomorrow night, changing the rain to a slushy accumulation of snow by Friday morning.
The snow should wind down on Friday.
But the weather office says on the bright side, a dramatic change to spring-like warmth is forecast to begin on the weekend.