TORONTO – Environment Canada has issued a heat alert for the GTA and most of southern Ontario.
The agency is warning that temperatures across the region will reach from 30 to 32 degrees on Saturday and Sunday.
Saturday night will be especially warm, with overnight minimum temperatures in the 20 to 23-degree range.
What will make the weekend especially punishing are humidex values that will peak near 40 degrees on both weekend days.
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You can expect a bit of relief from the high temperatures if you live near one of the shorelines of the Great Lakes.
The mini-heatwave will cool off on Monday – that’s when highs will retreat to the upper 20s.
Heat alerts have been issued for the regions of:
- Barrie – Orillia – Midland
- City of Hamilton
- City of Toronto
- Dufferin – Innisfil
- Dunnville – Caledonia – Haldimand
- Elgin
- Grey – Bruce
- Halton – Peel
- Huron – Perth
- London – Middlesex
- Niagara
- Oxford – Brant
- Sarnia – Lambton
- Simcoe – Delhi – Norfolk
- Waterloo – Wellington
- Windsor – Essex – Chatham-Kent
- York – Durham
Environment Canada is reminding Canadians that while extreme heat can be dangerous for everyone, it’s especially risky for:
- Older adults
- Infants; young children
- People suffering from chronic illnesses, like breathing difficulties, heart conditions or psychiatric illness
- Those who work in the heat
- People who exercise in the heat
- Those without access to air conditioning
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