Winter weather is throwing Montreal yet another curveball. Environment Canada has issued a weather warning for Montreal and many surrounding areas, saying a flash freeze is headed our way Saturday afternoon.

"Temperatures will drop rapidly this afternoon or early this evening," Environment Canada said. "Puddles, wet snow and any additional precipitation will freeze as temperatures drop."

Montreal isn't the only area expected to be affected. Environment Canada also issued the flash freeze warning for Châteauguay (La Prairie area), Laval, and Longueuil (Varennes area).

The change in temperature is expected to affect both walkways and roadways. Environment Canada is warning Montrealers that "surfaces such as highways, roads, walkways and parking lots may become icy and slippery."

According to The Weather Network, Montreal temperatures are expected to move from above zero to -5 degrees by 5 p.m., dropping to -13 degrees by 10 p.m. tonight.

"Flash freeze warnings are issued when a rapid drop in temperature is expected, that can cause water from rain or melted snow on streets and sidewalks to quickly freeze," Environment Canada explained.

Environment Canada has also issued flash freeze warnings for areas outside the Montreal region including Quebec, Charlevoix, Eastern Townships, Laurentians and Gatineau, to name a few, making it clear that things are about to get icy.

So, if there's a day where staying home is highly advised, it's today. If you must trek through sidewalks and roads, be sure to do so with caution and stay safe out there, Montreal!