Summer ended just a little over three weeks ago, but Ontario is already dealing with temperatures that feel below freezing, and some areas of the province are even witnessing snowfall.

Toronto temperatures exceeded 22 degrees on October 11, and have swung into the low single-digits in a matter of just days. 

Residents of Canada's largest city woke up to start the truncated work week on Tuesday with temps feeling as cold as -2 C, while other areas of the province near Georgian Bay and Lake Huron experienced their first snowfall of the season overnight Monday and into Tuesday morning.

A system of lake-effect snow hit areas north of Shelburne on Monday night, and though temperatures were too high to allow for any accumulation, it likely gave locals a rude awakening just days after many in the region were out in t-shirts enjoying the fall colours.

Snow is really coming down now, north of #Shelburne with this latest band.

Not accumulating as temps are still too warm.#OnWX https://t.co/nqI2w08Hkc pic.twitter.com/g4iK366PFG

— WxOntario (@WxOntario1) October 15, 2024

Environment and Climate Change Canada (ECCC) reported that snowfall was apparent on webcams recording in areas near Singhampton on Tuesday morning, though it appears that this precipitation was also melting on contact with the ground.

HOLY SNOW! ❄️

Wet snow can be seen on webcams this morning near Singhampton! 😱 The wet snow will mix with showers at times today in lake effect precip south of Georgian Bay - outlined in RED.

Local forecast 👉 https://t.co/0DEI1Ml9J8

Webcam image courtesy @511Ontario#ONwx pic.twitter.com/hDmteYXc1v

— ECCC Weather Ontario (@ECCCWeatherON) October 15, 2024

And Monday night's dusting of snow could prove to be just a taste of what's to come this week.

According to The Weather Network, snowfall in the region has the potential to continue Tuesday and into Wednesday, warning that "regions north of Orangeville along Highway 10, including Shelburne, are at the highest risk of seeing the first light accumulating snowfall of the season."

As for the densely-populated regions of the Greater Toronto Area to the south, us city folk are likely to get off comparatively easy, with The Weather Network reporting that "it's unlikely for any significant snowfall totals across southern Ontario, with temperatures hovering a couple of degrees above freezing."

The Weather Network notes that Tuesday will mark the coldest day in the province since April 2024.

Winter is still far on the horizon, though, and the current cold snap is expected to subside later in the week with some downright balmy conditions.

ECCC's forecast calls for a high ridge of pressure to build across the province on Wednesday, with multiple weather prediction models suggesting temperatures will be "well above normal by Friday."