It might be time to dust off your winter coat. A series of Ontario frost advisories were issued by Environment Canada for Tuesday morning and chiller temperatures are expected to carry into the weekend. In fact, parts of the province will be hit with cool October temperatures. 

Today, Environment Canada is warning residents of some chilly morning temperatures. 

Areas such as Kingston, Halton and Waterloo are all under advisories, with frost expected to last into the first few hours of the morning.  

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However, warm temperatures will resurface for the rest of the week. 

According to The Weather Network, southern Ontario is expected to bring back those summer vibes on Wednesday with temperature shooting up into the mid-20s, which with humidex will feel close to a 30 C.

You will have to enjoy the sun while it lasts because temperatures are expected to plunge again this weekend. 

Residents can expect to get a taste of early fall as October-like temperatures hit the province. 

It will be so cold that many Ontario spots outside of urban areas will even see their first full frost of the season on Saturday morning. 

According to the weather forecast, Toronto will feel as chilly as 5 C over the weekend. 

While areas like Peterborough will be hitting as low as 2 C. 

[rebelmouse-image 25995355 photo_credit="The Weather Network" expand=1 original_size="678x381"] The Weather Network

However, that doesn't mean that summer is over just yet.

TWN also reported that another round of toasty weather is on its way into next week. With some days even expected to hit above-normal temperature. 

Ontario's fall forecast is also calling for a toasty fall until the end of November. 

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