There is a band of weather crossing over Southwestern Ontario that is bringing the possibility of heavy rain to some regions including London, Brant, and Hamilton. Environment Canada has given a heads up in the form of a Special Weather Statement which reads:
Locally heavy rain possible this morning.
Showers and thunderstorms will continue to developed over the area this morning. Locally heavy rainfall accumulations of 20 to 40 mm will be possible by the time the precipitation comes to an end later this morning.
Expect rain this morning, but be prepared for it to be heavier than average at times.
Information and Image from Environment Canada.