Oct. 21 weather: Sunny and high near 15 C in southern Ontario

Wednesday’s weather forecast calls for mostly sunny skies in the Greater Toronto Area and across southern Ontario.

Environment and Climate Change Canada says the morning will be sunny in Toronto, Hamilton, Oshawa, Pickering and the Niagara Falls area.

Conditions will be mainly sunny with some cloud cover expected in Mississauga, Brampton, Burlington and Oakville.

The daytime high is expected to be 15 C in Toronto and 16 C in Mississauga. Temperatures could reach up to 18 C in Sarnia and Windsor. The seasonal normal for Oct. 21 in Mississauga is between 3 C and 12 C, Environment Canada says. The UV index will be 4 or “moderate” across the GTA.

Conditions are expected to clear across the GTA and most southern Ontario on Wednesday evening, and the low will be around 5 C, the weather agency says.

Warmer-than-usual temperatures are expected to stick around through most of the week, according to Environment Canada.

Thursday’s forecast calls for more sunny skies with a high of 18 C and a low of 1 C overnight, while Friday will cool slightly with a high of 13 C expected.

Looking ahead to the weekend, conditions are expected to be sunny on Saturday with a high of 16 C and a low of  5 C. Sunday could bring a mix of sun and cloudy conditions to Mississauga with a high of 18 C and a low of 7 C.

Next week could bring showers to the GTA. Conditions are expected to be a mix of sun and cloud on Monday in Mississauga, with a 30 per cent chance of showers and a high of 15 C.

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