One more warm day, then a blustery storm system moving through will shift Winnipeg into a cooler weather pattern.

A low pressure system moving into the province tonight will usher in a change for Winnipeg’s general weather pattern. Today will still be mild with temperatures climbing up to around -1 °C with mixed skies becoming cloudy this evening. The wind will be a little more noticeable today, picking up out of the south into the 20–30 km/h range for the afternoon and evening.

The low will arrive this evening, bringing warm air that will send temperatures up above 0 °C overnight. There will be a chance for a wintery mix overnight (snow, freezing rain, rain), but what exactly falls is highly dependent on the track of the low and how warm it ends up being. The temperature will drop below freezing to around -1 °C by Thursday morning.

Moderate northwest winds will move in on Thursday, strengthening to 30–40 km/h with gusts up to 60 km/h. Much of the region will see periods of light snow with widespread accumulations of 2–4 cm. A cold front passing through on Thursday night will reinforce the winds and bring more light snow to the region. This snow and wind will likely produce some areas of poor visibility in blowing snow on Thursday night. Temperatures will head to a low near -8 °C.

By Friday, it’s all cold air advection. Temperatures will struggle to move much from their starting point in the morning as the moderate northwest winds continue. Temperatures will only climb a degree or two above the day’s starting point for a high near -7 °C. The snow should taper off through the day, but skies will stay cloudy. The winds will ease Friday night with temperatures heading to a low near -13 °C under mostly cloudy skies.

Long Range Outlook

Cooler temperatures will persist right through next week with daytime highs generally in the -5 to -10 °C range and overnight lows dipping into the minus teens. Skies will stay on the cloudier side, and with the expected temperatures there will be a chance for some non-accumulating light snow on many days.

By the end of next week, it looks increasingly like the polar vortex will shift southwards and begin to flood central and eastern Canada with much colder polar air. This will likely mark the start of an extended period of generally below-seasonal temperatures with the potential for outbreaks of extreme cold.

Winter had to arrive at some point…enjoy the pleasant conditions while they last!

Today’s seasonal daytime high in Winnipeg is -13 °C while the seasonal overnight low is -24 °C.

Winnipeg will continue to see temperatures well above seasonal values this weekend. The deep freeze typical for this time of year looks to stay absent through the coming week.

Instead of the cold, Winnipeg will instead see temperatures climb towards freezing over the coming days as a series of low pressure systems moving across the Prairies spread mild Pacific air into the region. First, though, Winnipeg will see a high near -8 °C today. Skies will likely stay cloudy for much of the day with plenty of stratus left behind from a disturbance that moved through overnight. With the cloud, the city will also likely see some light snow through the day. Clearing should work into the region this afternoon, though there’s a chance it could take until evening for it to reach Winnipeg. Once it clears out, Winnipeg will see mainly clear skies overnight with a low near -12 °C.

On Saturday, the first of two low pressure systems will work across the central Prairies into Manitoba. As it pushes eastwards, it will spread cloud into the region through the afternoon hours. Winds will start light, but strengthen out of the south into the 30–40 km/h range for the afternoon. Temperatures will climb to a high near -2 °C. More cloud will move through the region on Saturday night as the winds ease and temperatures hover around -1 °C.

On Sunday, another low — slightly stronger than the first — will scoot across the Prairies. Temperatures will climb to around 0 °C in Winnipeg with skies clouding over. Winds will be light to start and gradually pick up to around 30 km/h in the afternoon. Heading into the night, a trough moving through the Red River Valley may bring some light snow or even a couple rain showers, depending on where exactly the temperature is at the time. Temperatures will dip to a low near -2 °C by Monday morning.

Long Range Outlook

Temperatures will cool slightly next week with highs slumping into the -5 to 0 °C range. Lows will also follow suit, staying well above normal for this time of year in the -5 to -15 °C range. Some snow is possible with a cold frontal passage on Monday, otherwise while skies stay on the cloudier side there should be little snow to speak of through the rest of the week.

Today’s seasonal daytime high in Winnipeg is -13 °C while the seasonal overnight low is -23 °C.