Much of southern Ontario will be under a heat warning Sunday and into next week with temperatures expected to climb to the mid-30s.
Environment Canada issued a heat warning across the province from Sunday through Tuesday, with daytime highs near 31 C and overnight lows near 20 C.
The weather agency is also forecasting a high of 28 C in Toronto on Saturday, feeling more like 32 C with the humidity taken into account. The average high for this time of year is 23 C.
“The humidex Saturday is in the low 30s, we’ll be talking mid-to-upper 30s as early as Sunday and that’s when the real heat starts to build in from the mid-west,” said Global News Chief Meteorologist Anthony Farnell.
“On Sunday, winds really pick up from the southwest. We are expecting very hot conditions all across the GTA and really, all of southern Ontario,” Farnell said.
“We could be breaking records as early as next week.”
Areas affected by the heat warning include:
- Barrie-Orillia-Midland
- Brockville-Leeds-Grenville
- Hamilton
- Ottawa
- Toronto
- Cornwall-Morrisburg
- Dufferin-Innisfil
- Elgin
- Halton-Peel
- Huron-Perth
- London-Middlesex
- Niagara
- Oxford-Brant
- Peterborough-Kawartha Lakes
- Prescott and Russell
- Sarnia-Lambton
- Smith Falls-Lanark-Sharbot Lake
- Waterloo-Wellington
- Windsor-Essex-Chatham Kent
- York-Durham
The warm temperatures are expected to persist through the beginning of the work week, with highs of 33 C forecast for both Monday and Tuesday.
“It is a heat wave and it lasts through Tuesday,” Farnell said.
The warm weather will be welcomed by some after the high levels of rain Toronto has experienced over the past recent months.