Environment Canada has issued a rainfall warning for Christmas Day. Tonight:Periods of rain changing to flurries near midnight and ending before morning, then partly cloudy. About 2 cm of snow is expected to fall. There will be a southwest wind at 20 km/h, gusting to 40, and a low of minus 3. Don’t forget to submit your photos of Montreal via Facebook, Twitter and Instagram by tagging them with #ThisMtl. We’ll feature one per day right here in the morning file. Today’s photo was posted on Instagram by @arcpixel.