After about 2 or 3 cm of snow in Winnipeg yesterday, more snow is on the way in the next few days. Temperatures will remain generally mild, but brief pushes of colder air will exist.
First, some light snow is expected today. No significant accumulation is expected however. Temperatures will gradually fall through the day as colder air is advected in. Chillier night tonight, possibly dipping around -20°C.
Once again tomorrow, the afternoon will be chilly and the high wont be reached until late in the evening. There will be a stiff south wind down the valley once again, making it feel even colder.
Unfortunately, there is good agreement that we'll be seeing another clipper system on Saturday with periods of snow beginning sometime tomorrow night and tapering off sometime Saturday. There is less agreement on snowfall amounts though, but 2-5 cm looks like a good range right now. Will update in the comments below if things change. Breezy north-northwest winds will develop Saturday morning and afternoon, giving drifting and blowing snow in open areas, especially outside the city. Temperatures will be mild on Saturday despite the snow.
Some slightly colder air pushes in Sunday. Next week is a little uncertain at this time. A clipper system or two might bring a chance for some snow. After a mild start to the week, we might cool down later in the week.