The summer heat that’s been in place over the region this week will come to an end as a cold front sweeps southwards.

Before the cooler weather arrives, though, southern Manitoba will have one more hot day. Another low pressure system moving towards the province will push more warm air into the southern portion of the province today. Daytime highs will again climb up to around 30 °C with plenty of sunshine this afternoon.

Conditions will finally change tonight when a cold front sweeps southwards. It will bring a chance of showers or thunderstorms to the region overnight into Saturday morning as it moves through. Temperatures will dip into the upper teens as light northerly winds develop.

The chance of rain will taper off on Saturday morning as north winds pick up into the 20–30 km/h range. Temperatures will climb up into the low- to mid-20s in the afternoon under partly cloudy skies. Heading into the night, temperatures will drop into the mid-teens with light north winds.

Sunday will bring a repeat of Saturday as a broad area of high pressure builds into the province. Temperatures will again climb into the low- to mid-20s under partly cloudy skies. Winds will be light out of the north through the day. Clouds may move in on Sunday evening as temperatures dip down into the low teens.

The other notable change for the weekend is that while lingering humidity may stick around through Saturday, much drier air will push into the region by Sunday, offering relief from the more humid weather of the past week.

Long Range Outlook

Next week will bring seasonably cool temperatures with daytime highs in the 20–25 °C range and overnight lows in the 10–15 °C. A partly cloudy start to the week could turn unsettled mid-week, but settled conditions should develop for the end of the week.

Today’s seasonal daytime high in Winnipeg is 26 °C while the seasonal overnight low is 13 °C.

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The chance of showers and thunderstorms will keep coming back to the Winnipeg area as a couple more disturbances cross the region in the coming days.

After dodging thunderstorms yesterday that hovered in the sky to the west and north of Winnipeg much of yesterday, the city will see a pleasant end to the work week. A broad area of high pressure will sit over the region and bring sunshine and warm temperatures to the city. After a sunny start to the day, skies will turn partly cloudy as daytime highs climb into the mid-20s this afternoon.

Temperatures will head down into the mid-teens tonight with partly cloudy skies.

On Saturday, the region will see increasing cloud as a disturbance moves into Manitoba from Saskatchewan. While showers and thunderstorms will be possible over west and southwest Manitoba through the day, the wet weather will likely hold off until later in the day for the Red River Valley. By late afternoon, scattered showers and thunderstorms will likely drift southeast through the region, with rain likely in the Winnipeg area.

There isn’t likely a widespread severe weather threat on Saturday for Winnipeg. The instability and wind shear required to organize a thunderstorm will be limited and while a strong thunderstorm is possible, severe weather is unlikely. The chance of showers and thunderstorms will persist into the evening, then taper off overnight.

Temperatures will climb back into the 20 to 25 °C range on Saturday, then dip back down into the mid-teens on Saturday night with cloudier skies.

Sunday will bring another ridge of high pressure through the region. This should clear the clouds out for a sunny afternoon with a high back in the mid-20s. The region will have northerly winds up to the 20 to 30 km/h range. Temperatures will head back down to the mid-teens on Sunday night with partly cloudy skies.

Long Range Outlook

Another low pressure system will move through the region on Monday, bringing another chance of showers and thunderstorms to the Winnipeg area. After that, there is a chance that the region could see stabler conditions for the rest of the week with near-seasonal temperatures.

Today’s seasonal daytime high in Winnipeg is 24 °C while the seasonal overnight low is 12 °C.