Sunday will be a beautiful day across Southern Ontario. We are looking at a mix of sun and cloud with temperatures in some areas nearing 20 degrees.
The average high for this time of year is about thirteen degrees.
The nice weather will be short-lived, however. It looks like a storm system may move in Monday night into Tuesday.
The heaviest rain will probably fall over northwestern Ontario. Rainfall amounts of 30 to 40 mm are possible.
Across Southern Ontario, we cloud see anywhere from 15 to 35 mm of rain.
Heavy rain is expected in Central Ontario also.
Since the low has yet to develop, keep checking back for updates.