High pressure will cross the province early this week, bringing sunshine and warmer temperatures. A low-pressure system spins into the Great Lakes late Wednesday, ushering in rain and cooler weather for the end of this workweek.
Monday brings mostly sunny skies, with daytime highs climbing back to 20°C. Tuesday will be partly cloudy, with the afternoon temperature reaching 22°C.
A mix of sun and clouds will arrive on Wednesday, as daytime highs again hit 22°C. Rain will move in for the evening and continue into Thursday as temperatures fall to 19°C.
Sunshine returns for Friday, but a northwest breeze will keep daytime highs in the upper teens, which is near normal for the end of May.