Ontario could get slammed with a 'third winter' bringing even more snow

Although the official start of spring is less than a month away, it looks like Ontario isn't done with winter just yet.

Southern Ontario could be in for what some meteorologists are calling a "third winter," with icy temperatures and more snow lingering well into March and even April.

According to a European ECMWF (European Centre for Medium-Range Weather Forecast) model, temperatures could dip below seasonal averages at the end of March and into April and potentially bring additional snow across the region.

The models mirror an earlier forecast made by the Old Farmer's Almanac as part of its 12-month long-range weather outlook, which predicts that April and May will be cooler than normal in southern Ontario, with above-normal precipitation in the north.

Unfortunately, winter isn't done after this spring tease 😮‍💨

"Third Winter" is looking likely for the end of March/ early April *if* SSW event occurs

This may lead to more cold/ snow across Southern #Ontario leading to snow chances into April

We are nearing the finish line, but… https://t.co/nAZNNnqPuS pic.twitter.com/7jmvaGA0u0

— WxOntario (@WxOntario1) February 26, 2026

In its Spring 2026 Weather Forecast, the Almanac also noted that rain and snow should be expected in April, followed by scattered thunderstorms in May.

Released more recently, The Weather Network's forecast for the upcoming season predicts that "warm weather will lack commitment through March and well into April," which is expected to extend the is season but delay the start of the growing season.

"Near normal or above normal precipitation is expected through at least April," the forecast reads.

"No doubt this will include more snow and ice for much of the province including Toronto, Ottawa, and Thunder Bay. This could have some impact on preparations for the start of the spring planting season."

As if you needed another reminder that winter is far from over, this weekend will deliver yet another blast of Arctic air to the region. The cold snap will be driven by a polar vortex, which will send temperatures plummeting well below the 0 C mark on Saturday and Sunday.

By Saturday night, temperatures are expected to drop to -10 C, with a wind chill of -18 C and a chance of flurries. On Sunday, Toronto is set to see a high of -7 C and a low of -18 C at night, although with the wind, it's expected to feel closer to -22 C.

The Weather Network notes that the icy conditions on Sunday could potentially mark the city’s coldest March temperature since 2015.