More snow on the way for Montreal this weekend?

For many Montrealers, this has been a dispiriting early spring, weatherwise — and this weekend's forecast won't help things at all.

The Weather Network's forecast for this coming Saturday and Sunday is rather jarring — 10 to 15 centimetres of snow coming for Saturday, and another 10 to 15 centimetres for Sunday, though about 5 to 10 millimetres of rain may be mixed in with the snow on Sunday.

The network says highs both days won't climb any higher than 0.

Environment Canada's forecast, however, is a bit less ominous — Saturday's forecast for Montreal is calling for rain or snow and a high of +3, and rain or snow and +4 for Sunday.

Steve Boily with the weather office says it will be stormy for the next several days — a system coming up from the Great Lakes is expected to bring about 10 millimetres on Thursday, and another 5 to 10 millimetres during the early part of Friday before it moves on to the Maritimes.

Then, things could get a little messy.

Boily says on Saturday and Sunday, another system passing through southwestern Quebec could bring anywhere between 5 and 15 centimetres of snow, but he doesn't expect any snow that falls to stay on the ground for long — a lot of that will mix in with rain, or even ice pellets, as the temperature bounces back and forth above the freezing mark.

Boily cautions, however, that the system's track will have much to do with how much rain or snow we'll end up getting, and for the moment, that system is days away from hitting us.

Major snowfalls of 20 centimetres or more at this time of year in Montreal are rare, but they're far from unheard of. On April 15, 2007, Montreal received a 22-centimetre snowfall, and on April 29, 2010, 29.8 centimetres fell.

And the latest instance of a one-day snowfall of 20 centimetres or more happened on May 10, 1963, when 21.8 centimetres of snow fell on the city.