The GTA and other parts of southern Ontario could be in for a significant snowfall Tuesday, despite a weekend of balmy, spring-like weather.

Environment Canada issued a special weather statement Sunday evening about the expected storm.

“A low pressure system developing over the southern United States Monday will head towards the Lower Great Lakes and is expected to spread an area of snow into southern Ontario Tuesday and Tuesday night,” the agency said. “Significant snowfall amounts may be possible across portions of Southwestern Ontario, the Golden Horseshoe and Eastern Ontario. Travelling conditions could rapidly deteriorate.”

The low pressure system could mean around 10 to 15 centimetres of snow for the GTA, CP24 Weather Specialist Patricia Jaggernauth said Sunday.

“We could see some rain, snow mixing for the morning portion of your Tuesday and then this will be the significant system that will move in.”

Cooler temperatures are expected to stick around on Wednesday and Thursday as well.

The temperature is expected to range between -1 C and -10 C from Tuesday to Thursday.

While those temperatures are seasonal, they’ll mark a sharp shift from the spring-like weather this weekend.

A record-breaking 13.8 C was recorded at Pearson International Airport Sunday, making it the warmest Feb. 28 on record. Sunday’s temperature beat the previous record of 11.1 C set back in 1954.

Last year, Toronto was feeling far more winter-like on this day, with a high of just -4.8 C.

While wintry weather is expected to return next week, there will be a somewhat soft landing, with a high of 5 C expected on Monday.