Environment Canada has issued a heat warning for Windsor-Essex and Chatham-Kent — and it's expected to continue into Monday night.
Daytime temperatures will increase between 31 and 34 C, according to the weather authority.
Overnight lows will provide "little relief from the heat" — with Environment Canada forecasting them to fall between 20 and 22 C.
A cold front is expected to move Tuesday through southwestern Ontario, bringing with it showers, thunderstorms and "an end to the heat and humidity."
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