Windy Weather Ahead

Winnipeg’s first effort at milder temperatures will come with plenty of cloud and wind, but sunnier and warmer conditions are likely next week.

Warmer weather will build into the region today ahead of a low pressure system forming over Alberta. Skies should stay mostly cloudy today as the low gathers steam and pushes into Saskatchewan. Temperatures in the city will climb to a high near +2 °C this afternoon. As the low begins moving towards the province this evening, southerly winds will strengthen up to 40 gusting 60 km/h and persist through the night. With cloud cover and moderate southerly winds, temperatures will stay fairly steady with a low near +1 °C.

On Saturday, the low will cross through the province, bringing the warmest air with it. Th wind will ease for the morning with temperatures reaching a high near +4 °C. A potent cold front will sweep through the region midday, ushering in strong northwest winds up to 50 gusting 70 km/h. A chance for midday rain will quickly change to a chance of snow as temperatures drop in the afternoon. The chance of light snow will continue into the evening, then end as a ridge moves into the area. Skies will clear out overnight with temperatures heading to a low near -8 °C.

RDPS 10m Wind Forecast valid 21Z Saturday October 31, 2020
Strong northwest winds will develop over southern Manitoba on Saturday.

Warmer air will already be pushing back into the area on Sunday as a broad upper ridge begins building across the Prairies. The city should see a high near +2 °C with partly cloudy skies. South-southwest winds will pick up through the day into the 20–30 km/h range, then gradually ease overnight. Temperatures will fall to a low near -2 °C on Sunday night under partly cloudy skies.

Long Range Outlook

The upper ridge will continue building across the Prairies through early next week, ushering in a warmer air mass. It looks likely that daily highs may climb up into the 8–12 °C range for a few days, but one unknown is how much low-level cloud the snowpack may generate as the warmer air arrives. In some cases, extensive stratus development can keep temperatures near the surface hovering close to the freezing mark.

We’ll have to wait and see, though, how much of an impact this has. If the winds are able to keep enough of a westerly component to them, they should stay dry enough to scour out any moisture from melting and keep the sun shining through.

Near-seasonal temperatures are forecast to return near the end of the week.

Today’s seasonal daytime high in Winnipeg is 4 °C while the seasonal overnight low is -5 °C.

Temperatures Trending Milder in Winnipeg

Milder weather will gradually build into the region over the coming days, but cloud cover will limit potential warmth.

The tail end of the weather system that brought snow to the region yesterday will move through the Red River Valley this morning, bringing with it a good chance of some rain showers or flurries. The precipitation should end by mid-morning followed by northerly winds of 20–30 km/h and a high of +1 °C. Skies will become mixed in the afternoon, then mainly clear in the evening. The winds will ease tonight with temperatures heading to a low near -11 °C as an Arctic ridge slides through.

On Thursday, skies will become increasingly cloudy with a light southerly wind. Temperatures will still be a bit cooler with a high near 0 °C as Arctic air lingers a bit longer in the region. Temperatures will head to a low near -5 °C on Thursday night with mixed skies.

RDPS 2m Temperature Forecast valid 12Z Saturday October 31, 2020
A strong low pressure system is forecast to push warmer temperatures into the region on Friday night.

A strong low pressure system will begin moving across the Prairies on Friday, pushing a warmer air mass across the southern Prairies. Unfortunately, an expansive area of cloud moving through the region will limit temperatures. Winnipeg will see a high of only 2 or 3 °C with southerly winds increasing to 30 gusting 50 km/h by the evening. These moderate southerlies will continue through the night as the low approaches. The region will see a chance of rain showers overnight with a low near +1 °C.

Long Range Outlook

Saturday will bring more cloud cover as the low continues moving through the region, along with another chance for some rain or snow. Temperatures will reach a high near +4 °C, but then a cold front will sweep through and usher in brisk northwesterly winds and a brief return to cooler temperatures. Sunday should bring mixed skies with a high in the low single digits.

Another push of warm air is forecast for the beginning of next week and the region could see daytime highs in the 7 to 10 °C range for the first half of the week.

Today’s seasonal daytime high in Winnipeg is 6 °C while the seasonal overnight low is -4 °C.

Mild And Unsettled Conditions Ahead

Out of the grip of Arctic air, Winnipeg will see seasonably mild conditions to start the week. With the warmth will come some unsettled conditions that may bring a couple rounds of showers to the city.

Winnipeg will see a cloudy start to the day ahead of a weak “cool” front that will push through midday. The front will bring a few showers to the region as it moves through, followed by some afternoon clearing. Temperatures should pop up to a high near 18 °C in the afternoon with winds picking up out of the northwest to 30 gusting 50 km/h.

Skies will stay clear only briefly in the evening with more spreading into the region overnight ahead of the next disturbance. Temperatures will dip to a low near 9 °C with winds easing.

RDPS 12hr. Accumulated Precipitation Forecast valid 21Z Monday October 5, 2020
A band of showers will spread across southern Manitoba through the day on Monday.

On Tuesday, a low pressure system passing through the Interlake will bring mild temperatures back to the region again. Winnipeg will see a high near 18 °C with mixed skies. Winds will be light for the morning, but northwest winds near 30 gusting 50 km/h will redevelop as cooler air pushes in again through the afternoon. The city will likely see some showers move through later in the day.

Skies will clear out on Tuesday night with easing winds and a low near 7 °C.

Seasonal temperatures will move into the region for Wednesday with a high near 14 °C in Winnipeg. The city will see mainly sunny skies with light northwest winds. A bit of cloud will build back into the region on Wednesday night with a low near +3 °C.

Long Range Outlook

Winnipeg should see near-seasonal temperatures right into the weekend with variable cloudiness. The next notable chance for rain is forecast for the start of next week, so enjoy the pleasant early October weather!

Today’s seasonal daytime high in Winnipeg is 14 °C while the seasonal overnight low is 2 °C.

Cooler Conditions Ahead

A cold front plowing southwards today will usher significantly cooler fall conditions into southern Manitoba.

Winnipeg will see moderate northerly winds today that usher in a seasonably cool air mass that will stick around into the weekend. Under cloudy skies, Winnipeg will see winds strengthen to 40 gusting 60 km/h today in the wake of a cold front that moved through last night. The city will see a chance of showers in the morning, but a more organized area of light rain will move through with another cold front in the afternoon. Temperatures will reach a high of near 11 °C. The wind will persist out of the north through the night near 30 km/h with a low near +2 °C.

RDPS 12hr. Precipitation Accumulation Forecast valid 06Z Thursday October 1, 2020
Showers will spread through southern Manitoba on Wednesday afternoon and evening.

Thursday will bring skies on the cloudier side to the city with temperatures struggling to recover much. That northerly wind will gradually ease through the wind with a high near 8 °C. A few showers will be possible in the lee of the lakes. A high will move through on Thursday night, bringing light winds, partly cloudy skies, and lows dipping just below freezing.

On Friday, a low pressure system will slide southeast through Saskatchewan into the Dakotas. As it moves through, it will spread more cloud over southern Manitoba along with light southerly winds. Temperatures will be seasonably cool again with a high near 9 °C with more showers possible in the evening and overnight as a trough moves across the region. Temperatures will dip to a low near +2 °C on Friday night.

Long Range Outlook

Cool weather will persist into Saturday with some lingering lake-effect precipitation into the afternoon hours. A bit of clearing is forecast to move in on Saturday night, but more cloud returns Sunday as a warm front pushes across the province. This will bring warmer weather back to the region with highs in the mid-teens by Monday. This seasonably warm weather should stick around for much of next week.

Today’s seasonal daytime high in Winnipeg is 15 °C while the seasonal overnight low is 3 °C.