From CTV News:
The countdown to summer ends when the much-loved season officially arrives Tuesday afternoon, bringing with it dreams of cloudless skies and endless sunlight.
Summer officially begins at 1:16 p.m. on Tuesday – the summer solstice and the longest day of the year.
Environment Canada expects the season to start off with a daytime high of 24 C and a mix of sun and cloud. The rest of the week, however, could be a bit of a downer.
Thunder showers are expected across the Toronto area on Wednesday, with more rain and slightly below-average temperatures predicted through Saturday.
Temperatures are expected to hover between a low of 16 C and a high of 24 C through the next four days. Normal temperatures are highs of 25 C and lows of 15 C.
Environment Canada predicts sun to return to the region on Sunday, bringing with it temperatures in line with the norm.
In its official summer forecast, Environment Canada said Toronto's summer will be hotter and drier than normal throughout June, July and August.
Last year was the third-warmest summer since the environmental agency started keeping records in 1948.