Summer Warmth Gradually Returns

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After a cool and smokey interlude to the week yesterday, fresher air and warmer temperatures will return to the region for the second half of the week.

An upper ridge building across the Prairies will shape the weather this week. As it pushes eastwards, a southerly flow will begin to push warmer air from the south back into the region.

Today, Winnipeg will see light winds and perhaps a bit of lingering smoke from the forest fires east of Lake Winnipeg. Temperatures will return to a near-seasonal high of 25 °C under mainly sunny skies. A light southerly wind will persist tonight at 15–25 km/h with a low 13 °C.

On Thursday, Winnipeg will see a bit more cloud as a weak disturbance pushes towards the province from Saskatcehwan. Southwestern Manitoba will likely see showers through the day, but they will struggle to move into the Red River Valley. A dry southerly wind around 30 km/h will develop in the morning and, combined with a lack of upper support, will weaken the showers as they move east. There’s a chance for a few drops here and there, but any accumulating shower activity should stay further to the west. Tmeperatures will reach a near-seasonal high around 26 °C. The city will see partly cloudy skies on Thursday night with diminishing winds and a low near 15 °C.

Summer heat will spread back across the Prairies by the end of the week with highs in the low to mid-30s in northern Manitoba and upper 20s in the south.

Friday will bring slightly warmer temperatures to Winnipeg with a high near 28 °C and a light southeast wind. The disturbance that will bring the unsettled condtiions on Thursday is forecast to stall out over Saskatchewan. As a result, southwestern Manitoba will likely see some scattered showers, but skies should clear in Winnipeg through the day. Tmeperatures will head to a low near 17 °C on Friday night with clear skies.

Long Range Outlook

It will be a hot weekend in Winnipeg with highs climbing back into the low 30s. The city will see mainly sunny skies throughout and overnight lows around 20 °C. The forecast is absent of any notable precipitation for the Red River Valley. The hot weather will continue into next week, but conditions may become a bit more unsettled. There may be better chances for some showers and/or thunderstorms heading into the week.

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

Cooler Weather Ahead

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Winnipeg will see relief from the heat this week as an Arctic high brings slightly below seasonal temperatures to the region.

A series of cold fronts sweeping through the province over the last 24 hours are ushering in cooler temperatures from the north, bringing an end to the intense heat that’s been in place over the region. This cooler air mass will be brought by a sprawling Arctic high building into the Prairies.

Winnipeg will see a seasonably warm day today with a high near 26 °C under mainly sunny skies. Winds will pick up out of the north into the 30–40 km/h range for the afternoon. The clouds will thicken up heading into the evening as an upper-level disturbance pushes into the region. Another cold front will push through at the surface tonight, keeping winds up at around 20 km/h. This upper-level disturbance will bring a chance of rain to the city, but the cold front will likely shunt everything southwards a bit. It’s likely that the rain moving through will just glance Winnipeg, or move completely south of the city. Temperatures will head to a low near 11 °C.

RDPS 2m Temperature Forecast valid 21Z Monday July 5, 2021
The southern Prairies will see seasonably warm conditions today, but a cold front pushing southwards will bring cooler temperatures for Tuesday.

Winnipeg will find itself behind a second cold front on Tuesday with much cooler weather. Temperatures will climb to a seasonably cool 21 °C with partly cloudy skies as the overnight system clears out. The wind will keep put out of the north-northeast at 20–30 km/h. These winds may bring plumes of smoke into the region from fires burning east of Lake Winnipeg. How thick the smoke ends up being depends on a lot of nuance. If you have sensitivities to smoke, be sure to keep on the lookout for any special air quality statements issued by ECCC. Winds will ease Tuesday night with temperatures heading to a low near 10 °C.

Winnipeg will see plenty of sunshine on Wednesday with a near-seasonal high near 25 °C. Winds will be light through the day, and any smoke is left in the area should clear out early. Otherwise, it should be a beautiful day for the city. Temperatures will head to a low near 14 °C on Wednesday night with an increasing southerly wind.

Long Range Outlook

Unsettled conditions will develop over the region on Thursday as a warmer air mass begins to return. Winnipeg will see cloudier conditions on Thursday with a chance of showers, followed by a bit more sun and warmer temperatures on Friday. The heat is back for the weekend with highs in the low 30s and overnight lows in the upper teens.

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

Hottest Days Arrive

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Winnipeg will see its hottest days of the heat wave ahead, but some relief will begin to work into the region on Sunday.

The massive upper high over the region will keep skies mainly sunny over the next two days and temperatures hot. Daytime highs will reach the mid-30s today and tomorrow in Winnipeg. Fortunately, the dew point will stay a comfortable range through the next couple days. Although it won’t be humid, the heat will be intense with little relief at night; lows will only reach around 22 or 23 °C both tonight and tomorrow night.

A trough approaching the province on Saturday will bring breezy southerly winds of 30–40 km/h and some afternoon cloud to the Red River Valley. Heading into the night, the trough will bring a chance of showers or thunderstorms to the region as it moves into the Red River Valley.

The chances for any rain will taper off on Sunday morning as the trough moves through. In its wake, breezy northwest winds in the 30–40 km/h range will develop. Skies should clear out in the afternoon with a high near 32 °C. Temperatures will head to a low near 18 °C on Sunday night

Long Range Outlook

Temperatures will return to seasonal values for the start of next week with variable cloudiness. Conditions look likely to turn unsettled around mid-week, with the potential for a couple rounds of showers/thunderstorms in the second half of the week.

Today’s seasonal daytime high in Winnipeg is 25 °C while the seasonal overnight low is 13 °C.

The Heat is On

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Winnipeg’s daytime highs will slowly warm this week as the immense dome of hot air over western Canada slides eastwards.

Winnipeg’s forecast: sunshine and heat. A potent upper high continues to sit over western Canada continues, baking British Columbia and the Pacific Northwest with record-shattering heat. This upper feature will slowly move from southern Alberta into Manitoba over the second half of the week.

To start off Wednesday, the Winnipeg area will see a few clouds as the remnants of some overnight convection in the Interlake drift south. There’s a small chance that some of the activity will survive into the region, but anything remaining will taper off quickly through the morning. As the upper high approaches, conditions will stabilize over the province and temperatures will climb. Winnipeg’s high will increase from around 31 °C today to 35 °C by the end of the week. Overnight lows will also creep towards the 20 °C mark.

RDPS 2m Temperature Forecast valid 21Z Friday July 2, 2021
Intense heat will spread through the entire Prairies this week. Virtually everywhere that isn’t near a notable body of water will see temperatures climb into the mid- to upper-30s by Friday.

Winds will stay light over the next few days, gradually shifting from northerly today to southerly by Friday. The forecast shows no chance for rain.

Long Range Outlook

The heat will increase further this weekend with highs climbing into the upper 30s on Saturday. The heat will ease back to the low 30s on Sunday, then into the upper 20s to start next week. Some instability is forecast to return mid-week as temperatures once again climb back into the 30s.

Today’s seasonal daytime high in Winnipeg is 25 °C while the seasonal overnight low is 13 °C.