Ontario gas prices have remained stable this week; however, experts are predicting a significant shift come Friday.

Gas analyst Dan McTeague predicts an upcoming increase in the province's gas prices. Before the weekend, costs are expected to climb by 4 cents, reaching an average of 157.9 cents per litre in cities like Toronto, Ottawa, Hamilton, and Windsor.

Keeping in line with its reputation as Ontario's most affordable city for fuel, Peterborough is expected to be the only location to offer significant savings on Friday. Predictions indicate that gas prices in the city will peak at 152.6 cents per litre, despite an increase of 4 cents.

Although it's worth noting that gas stations in Cornwall could also offer slightly cheaper fuel on Friday compared to the rest of the province, with Gas Wizard predicting the city to cap off at 155.9 cents per litre ahead of the weekend.

Data supplied by the Canadian Automobile Association (CAA) shows Ontario's average gas price at 150.7 cents per litre as of Thursday, showing the province on a two-day upwards trend.

To celebrate their "Fuel Day" event, Circle K locations throughout Ontario and the country will be providing drivers with a discount of 10 cents per litre of gas on Thursday.

So, don't miss out on the opportunity to save some money while refuelling your vehicle, which you can do by visiting your local Circle K between 4:00 p.m. and 7:00 p.m. on May 18.