A Short-Lived Cold Snap

Winnipeg saw temperatures plunge back towards seasonal values overnight after a cold front swept through the region on Sunday. These colder temperatures will be short-lived, though, with milder temperatures returning to the region mid-week.

Temperatures will be seasonably cool in Winnipeg today as an Arctic ridge moves through the region. The city will see a high near -14 °C with light winds as the ridge moves across the Red River Valley. Some cloud will work into the region today as warmer air starts pushing in from the west.

Skies will stay cloudy tonight with a good chance of some light snow developing as a weak shortwave pushes towards the region. Temperatures will dip to a low near -18 °C.

Skies will stay mainly cloudy in Winnipeg on Tuesday as that weak shortwave moves across the region. Temperatures will climb to a high near -9°C with a chance for some light snow continuing through the day. A milder air mass will gradually push into the region from here on, shunting the coldest weather off to the north and east. Temperatures will dip to a low near -12 °C on Tuesday night with mixed skies.

RDPS 24hr. Snowfall Accumulation (Kuchera SLR) valid 00Z Wednesday December 16, 2020
Another swath of 2–4 cm of snow will fall across portions of Southern Manitoba Monday night into Tuesday.

More warm air pushing into the region on Wednesday will bring more cloud to the city. Skies will again be mostly cloudy with a chance of some scattered light snow. Temperatures will reach a high near -6 °C with light southerly winds. Temperatures will dip to a low near -12 °C on Wednesday night under mixed skies.

Long Range Outlook

Temperatures will stay mild over the coming days with generally above-seasonal highs and lows forecast. No significant snow events are in the forecast.

Today’s seasonal daytime high in Winnipeg is -10 °C while the seasonal overnight low is -19 °C.

Clipper System Brings Winter Back to Winnipeg

After record-breaking warmth yesterday, a change in the weather is coming up as a clipper will bring snow and usher a much colder air mass into the region.

Today will still be fairly mild in Winnipeg with temperatures once again climbing above freezing. The city should see a high near +2 °C with clouds increasing this afternoon as a low crossing the Northern Plains pushes towards the region. Skies will cloud over this evening with light snow beginning overnight. Temperatures will dip to a low near -2 °C.

Accumulating snow will taper off by midday Thursday with 5–10 cm likely in the Winnipeg area. There’s a slight chance that the snow band from this low will end up a touch further south; that would put Winnipeg closer to 2–5 cm and the southern Red River Valley in the 5–10 cm range. After the main snow tapers off, flurries will linger as a cold front gradually slumps southwards into the region. Temperatures will reach a high near -1 °C with northwest winds climbing into the 20–30 km/h range. The flurries will taper off overnight as temperatures head to a low near -9 °C and winds ease.

RDPS 24hr. Snow Accumulation (at 10:1 SLR) valid 18Z Thursday December 10, 2020
Snow will move across southern Manitoba on Wednesday night and leave behind a swath of accumulations in the 5–10 cm range.

Friday will continue the cooling as more seasonal temperatures push towards the region. Mixed skies will persist through the day — there may be some occasional non-accumulating light snow — with temperatures climbing back to a high near -5 °C. Skies will be partly cloudy on Friday night with temperatures dipping to a low near -16 °C.

Long Range Outlook

A much colder air mass will settle into the region this weekend. Daytime highs are forecast to drop into the minus teens with overnight lows potentially dipping below -20 °C by Monday morning. Temperatures may moderate slightly, but near-seasonal temperatures are forecast to persist right through much of week.

Today’s seasonal daytime high in Winnipeg is -9 °C while the seasonal overnight low is -18 °C.

Mild Weather Continues, Chance of Snow Tonight

Winnipeg will continue to see seasonably mild conditions through the rest of the week. A low moving through the province will bring a chance of light snow to the Red River Valley tonight.

A low pressure complex crossing the Prairies will bring more mild weather to Winnipeg today. Southerly winds picking up into the 30–40 km/h range will accompany temperatures climbing to a high near +1 °C. The city should see partly cloudy skies with thicker cloud moving in for the evening. Temperatures will dip to a low near -4 °C tonight with the winds easing overnight and shift westwards. A chance of light snow will develop overnight as a weak cold front pushes into the Red River Valley.

The chance for snow will taper off Thursday morning with cloudy skies giving way to some afternoon sunny breaks. Temperatures will barely be cooler than today with a high near 0 °C. Skies will stay cloudy tomorrow evening into the night as shortwave moves into the region as it digs southwards into the upper trough. This will bring another chance of some light snow to Winnipeg on Thursday evening. Skies will clear out through the second half of the night with temperatures dipping to a low near -9 °C.

RDPS 2m Temperature Forecast valid 21Z Wednesday November 25, 2020
Mild temperatures will move back into the Red River Valley today with highs climbing just above freezing.

Friday will bring more warm weather rot the city as another warm front pushes across the Prairies. Winnipeg should see partly cloudy skies as winds pick up out of the south in the afternoon into the 30–40 km/h range. Temperatures will climb to a high near +1 °C again. The wind will ease as it shifts westerly on Friday night and temperatures head to a low near -6 °C.

Long Range Outlook

Mild weather will stick around for Saturday, then a cold front is forecast to sweep through the province on Friday night. It will bring another chance of snow with it, then cooler temperatures will move into the region for Sunday and Monday. After that, it looks like Winnipeg will see a return to near-seasonal temperatures.afar

Today’s seasonal daytime high in Winnipeg is -5 °C while the seasonal overnight low is -13 °C.

Warm Weather and Light Snow On The Way

Winnipeg will see some more mild weather with some light snow moving through on Monday night into Tuesday.

Winnipeg will see seasonal conditions today as a weak upper ridge slides across the region. The city will see a few clouds today as temperatures climb to a high near -3 °C. The winds will pick up out of the southeast for the afternoon into the 20–30 km/h range. The southerlies will continue tonight as cloud and light snow moves into the region ahead of a low pressure system. This low will move northwards out of the Dakotas along a trough of low pressure moving towards the region tonight. The trickiest aspect to tonight’s snowfall will be the sharp western edge which should fall somewhere over the western Red River Valley. Temperatures will drop to a low near -7 °C.

The snow will gradually taper off on Tuesday morning with easing winds as the trough of low pressure moves into the Red River Valley. Total snowfall amounts will sit in the 2–4 cm range for most areas that see snow. Temperatures will be mild with a high near 0 °C with a chance of seeing the sun poke out in the afternoon. Temperatures will drop to a low near -10 °C on Tuesday night with partly cloudy skies and light winds.

RDPS 24 hour Accumulated Snowfall Forecast (at 10:1 SLR) valid at 18Z Tuesday November 24, 2020
A broad area of light snow will move through the Red River Valley into Northern Ontario on Monday night into Tuesday.

More cloud will spread into the region on Friday ahead of a low pressure system tracking across the northern Prairies. Seasonably mild temperatures will with a high near -2 °C in Winnipeg. Winds will pick up out of the south back into the 20–30 km/h range. Skies will stay cloudy on Wednesday night with a low near -4 °C. The winds will keep up through most of the night with a chance of some snow beginning towards Thursday morning.

Long Range Outlook

Any snow moving through on Wednesday night should taper off quickly on Thursday, followed some more pleasant late-November weather. Winnipeg should see daytime highs in the -3 to +1 range through the rest of the week with variable cloudiness. A potent winter low is forecast to cross the central Prairies on the weekend and may bring some snow to Winnipeg on Saturday night into Sunday along with a transition to seasonably cool conditions to end the weekend and start next week.

Today’s seasonal daytime high in Winnipeg is -4 °C while the seasonal overnight low is -12 °C.