Summer finally arrives in southern Manitoba.

The upper low that has kept Winnipeg in a seasonably cool pattern over the last week is finally beginning to move. The stagnant pattern that’s been in place over the Prairies is breaking down and a stalled upper low along the northern Manitoba/Ontario border will begin to drift eastwards. As it does, the pool of cold air it’s kept over the region will follow, allowing milder air to spread in from the west. An upper ridge will build into the Prairies through the rest of the week, bringing warmth and relatively settled conditions to the Red River Valley.

As a result, the forecast is short! Winnipeg will see daytime highs in the low- to mid-20s through the remainder of the week with lows climbing into the low teens. Skies will be mainly sunny over the next few days with just a bit of afternoon cloud. Wind also won’t be too much of an issue, picking up out of the north into the 20–30 km/h range each day and easing to light in the evenings.

Long Range Outlook

Some cloud cover will push into the region later on Friday ahead of a disturbance heading into the province. This will mark the start of a more unsettled stretch of weather. A few showers are possible this weekend, with stormier weather possible to start next week. Temperatures will stay warm with highs in the mid-20s, and increasing humidity will push lows into the upper teens.

All in all, it looks like we can say goodbye to “risk of frost” and hello to sunscreen. Enjoy the warm, dry weather ahead this week!

Today’s seasonal daytime high in Winnipeg is 23 °C while the seasonal overnight low is 10 °C.

A stalled low pressure system over the province will keep temperatures cool over the weekend. On the bright side, there won’t be much rain in the days ahead.

Below-seasonal temperatures will continue over the coming days as a captured cold low sits stalled over the province. Daytime highs over the next few days will sit in the 15–20 °C range with a northwesterly breeze each day. The region will see plenty of sunshine with some pop-up afternoon clouds. Overnight lows will likewise be cool, generally dipping to around 5 °C.

A bit more cloud will move through the region on Sunday. The stalled low over the province will dip southwards, also bringing slightly cooler temperatures. There’s a slight chance for a bit of rain, but it looks likely that any wet weather will stick to the north of the Red River Valley. Accumulations would be light with just a couple mm of rain possible in a small band.

Warmer weather will return on Monday with highs climbing back into the upper teens with mixed skies.

Long Range Outlook

Temperatures will trend back towards seasonal values next week, but no substantial shift into warmer weather is forecast. A weak upper trough will linger across the region through most of the week, bringing the occasional chance of afternoon showers driven by daytime heating. Forecast models show an increasing chance of a large upper ridge building across the Prairies by next weekend. This would bring settled and warmer weather to the region. There is a chance, though, that as that air mass builds across the Prairies through the weekend, there would again be the potential for more organized showers/thunderstorms as a warm front lifts through the region.

But for now, things will be able to dry out a bit with cool, dry conditions, sunny to mixed skies, and a breezy northwest wind.

Today’s seasonal daytime high in Winnipeg is 22 °C while the seasonal overnight low is 9 °C.