Winnipeg will see rather cool conditions mid-week gradually give way to a what may be a pleasant weekend.

Chilly fall weather arrives again in Winnipeg today behind a cold front sweeping through this morning. Northwest winds up to 30 gusting 50 km/h will usher in a cool Arctic air mass through the day. Temperatures will struggle to recover much, reaching a high this afternoon near 11 °C. The city should see a fair amount of sun today, aside from a bit of morning cloud. A few clouds will likely linger into the afternoon through some shallow convection or streaming off the lakes.

A sprawling area of high pressure will move into the province tonight and bring lows down close to the freezing mark. Skies will vary from partly cloudy to mixed and the winds will quickly ease in the evening.

On Thursday, this slow-moving system will linger over the province and bring light winds. Winnipeg will see some morning cloud give way to afternoon sun as temperatures begin to recover with a high near 14 °C. Temperatures will dip to a low near +2 °C on Thursday night.

The high will finally begin pushing off to the east on Friday. Temperatures will continue to rebound with highs near 16 °C. A southerly wind will strengthen to 20–30 km/h in the afternoon with partly cloudy skies. With the high well to the east by Friday night, temperatures will return to a near-seasonal low around 8 °C.

Long Range Outlook

A warmer air mass will push into Manitoba this weekend with highs potentially climbing into the 20s. We say potentially, though, because there’s also a good chance that it will bring another batch of forest fire smoke from the western United States. If that smoke were to push into the region, it would likely limit temperatures to the mid-teens rather than seasonably warm low twenties. Cloudier conditions are likely on Sunday with a chance of showers late in the day and into the night.

Warmer conditions are possible well into next week, with the conditional that forest fire smoke could blanket the sky and hinder temperatures at times.

Today’s seasonal daytime high in Winnipeg is 18 °C while the seasonal overnight low is 6 °C.

Winnipeg will see seasonably cool weather right through the weekend with otherwise pleasant conditions.

A ridge of high pressure will bring sunny skies to the Red River Valley as it pushes into the province today. Winds will be breezy out of the northwest again at 30 gusting 50 km/h, keeping temperatures cool. Winnipeg should see a high near 20 °C. Skies will stay mostly clear tonight as the winds ease off and temperatures dip to a low near 7 °C.

Saturday will bring a return to seasonal temperatures for Winnipeg with a high near 22 °C. Winds will stay light as they shift to the southeast for the afternoon. Skies will start off sunny, but more cloud will build into the region through the afternoon. The cloudier conditions on Thursday night will help keep temperatures slightly warmer with a low in Winnipeg near 13 °C.

A disturbance passing through the region on Sunday will bring mainly cloudy skies to the city. Temperatures will reach a high near 20 °C, but a cold front sweeping through in the afternoon will usher in significant change. Winds will shift northwesterly at 20–30 km/h in the afternoon behind the front and usher in a much cooler air mass. Skies will stay mostly cloudy right through Sunday night as temperatures dip to a low near 8 °C.

While this system will spread rain across Manitoba on Sunday, it should stay well north of the city. Areas from west-central Manitoba southeastwards into the Pinawa region will likely see around 10 mm of rain through Sunday.

Long Range Outlook

Daytime highs will plummet well below seasonal values to start the week as highs struggle to climb over 10 °C. On Monday and Tuesday, a persistent north wind combined will produce lake-effect showers in the lee of both Lake Manitoba and Winnipeg. Winds will shift westerly on Wednesday, bringing an end to the lake-effect precipitation and gradually pushing temperatures back towards seasonal values.

Also on Monday, an upper-level disturbance will drop into the region. It will spread a broad area of showers that will likely move through the Red River Valley as well.

Today’s seasonal daytime high in Winnipeg is 21 °C while the seasonal overnight low is 8 °C.

An upper ridge building across the Prairies will bring sunshine and warm summer temperatures to Winnipeg this week.

The next several days will bring plenty of sun to Winnipeg with highs climbing from the mid-20s into the low 30s. Winds will be light through the first half of the week, maxing out at 15 to 25 km/h out of the south.

A warm front will push eastwards through the region Tuesday morning, bringing a few clouds and a slight chance of a shower or isolated thunderstorm. It should clear out quickly, leaving sunny skies across the region. Another chance for rain will develop on Wednesday evening as a low pressure system moves into the region. Some cloud cover will develop on Wednesday afternoon, followed by a chance of showers or thunderstorms on Wednesday night into early Thursday.

Fortunately, the humidity should stay fairly comfortable with dew points generally in the 16 to 18 °C range.

Long Range Outlook

More showers or thunderstorms will be possible on Thursday as the low pressure system continues moving through. Behind it, northerly winds will usher seasonal temperatures back in for the weekend.

Today’s seasonal daytime high in Winnipeg is 25°C while the seasonal overnight low is 12°C.