In the wake of an Arctic cold front, temperatures have dropped to near or below the freezing mark prompting frost advisories for parts of northern Ontario. There are also signs of the... 'S' word!

September snowfall arrives ahead of fall season in northern Ontario

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Andrea Bagley

Digital Reporter

Wednesday, September 17, 2014, 1:36 PM - The official start to fall is still days away (September 23), but it appears the season has already been skipped entirely in parts of northern Ontario.

"Rain, snow and a rain/snow mix is falling across parts of northwestern Ontario this morning," says Weather Network meteorologist Brett Soderholm. "Any of the mixed precipitation is expected to transition over to rain throughout the morning."

Less than 5 cm had been recorded before 8 a.m. ET, but it was enough to catch some residents off guard as it is still technically summer right now.

Some northern Ontarians took to Twitter to express their disappointment with the early arrival of the fluffy white stuff.

@CHCHTV @Jaclyn_Colville on holidays with family in geraldton ontario. This was our good morning surprise at 7:30am pic.twitter.com/3eiwMfS1LH — Tucker Madder (@tuckermadder) September 17, 2014

And these photos were submitted to our Weather Network gallery. (WOW!)

"Snow day" - Roger Hachey, Geraldton, Ontario

"Too early for this" - Mark Mannisto, Longlac, Ontario

In the wake of an Arctic cold front, temperatures have also dropped to near or below the freezing mark prompting frost advisories for parts of the region early Wednesday.

"Take preventative measures to protect frost-sensitive plants and trees," warned Environment Canada in a frost advisory early Wednesday.

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While conditions will remain quiet and temperatures seasonal for much of southern Ontario, a significant drop in temperatures is also expected on Thursday as high pressure builds in.

"Thursday will bring the coldest daytime temperatures of the week with highs struggling to reach the mid-teens, which is more typical of mid-October," says Doug Gillham, another meteorologist at The Weather Network. "Friday morning will be the coldest morning that we have since last spring as parts of southern Ontario, including the outskirts of the Greater Toronto Area (GTA) will see frost."

An unsettled weekend ahead is also expected as a low pressure system will bring showers to much of the province.

"We are presently forecasting for the rain to push into the GTA late-afternoon Saturday, however there is significant uncertainty with this forecast due to to model disagreement," adds Soderholm.