Category: Forecasts

Pleasant Weather Continues For The Winnipeg Area

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December will start with a continuation of the mild weather the region has seen through much of the second half of November. With variable cloudiness in the days ahead, Winnipeg’s highs will keep hovering close to 0 °C.

RDPS 2m Temperature Forecast valid 21Z Saturday December 2, 2023
Mild weather will once again spread eastwards into southern Manitoba for the weekend.

Today will start off with plenty of lingering cloud across the region; it’s part of a band that stretches from southern Manitoba northwest through Saskatchewan and marks roughly the position of the Arctic front draped through the Prairies. Skies will clear a bit later today as the front lifts to the northeast, leaving behind sunshine and light southwesterly winds as temperatures climb to around 0 °C.

Over the next few days, the region can expect variable cloudiness as milder Pacific air gradually pushes through the region. Daytime highs will hover close to freezing, perhaps a degree or two above, and overnight lows will sit in the -5 to -10 °C range. It’s unlikely that any snow or rain will fall in the city this weekend.

Saturday will be windier with southerlies up to around 30 km/h. Otherwise winds should stay light over the coming days.

Long Range Outlook

Next week will bring more mild weather as an upper ridge builds across the Prairies. Daytime highs in Winnipeg will vary from just below freezing to several degrees above. A sunnier start to the week will likely become cloudier as the warmer air moves into the region.

No notable precipitation is on the horizon. By the end of next week, the upper ridge should begin to collapse which could bring some snow to the Red River Valley to end the week.

Today’s seasonal daytime high in Winnipeg is -7 °C while the seasonal overnight low is -15 °C.

Warm Weather Surges Back Into Southern Manitoba

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After just a couple cool days, Pacific warmth will surge across southern Manitoba today and bring milder weather back to the region.

RDPS 2m Temperature Forecast valid 15Z Tuesday November 28, 2023
A a warm front will push eastwards across southern Manitoba on Tuesday morning.

Residents of the Red RIver Valley will wake to breezy southerly winds this morning as a warm front quickly pushes towards the region. Wind chill values in the morning will reach into the mid-minus 20s, but that cold will be short-lived. There will be a chance of some light snow in the cloud cover ahead of the front, but little more than a dusting is expected given the dryness of the air in the southerly return flow.

The front will pass through the region midday; behind it winds will shift westerly and temperatures will rise dramatically; afternoon highs across the Red River Valley will climb to around 0 °C with many areas climbing a degree or two above freezing along and west of the Red River. 

As the warm air floods east, another change is happening in the Arctic that will also have an impact on the weather in southern Manitoba. Over the next few days, a low pressure system over Québec will lift northwards and then retrograde westwards into Foxe Basin; as it does, the broader vortex its rotating around will begin to drop southwards. This will allow a subsequent Atlantic low to pull westwards through Baffin Island and into Canada’s northern areas as well. This will flood the Arctic with milder Atlantic air and erode the store of cold air in the region.

This is notable because as the weather pattern erodes over Manitoba through the weekend, the northerly winds will be tapping into cooling Atlantic air rather than bitterly cold Arctic air. This will help keep warmer air around as a northerly component to the flow won’t suddenly usher temperatures of -20 °C southwards.

The end result will be a prolonged period of seasonably mild temperatures for Winnipeg and other areas in southern Manitoba. Daytime highs will hover in the -5 to 0 °C range, or even a bit warmer, through much of the week while overnight hover in the -5 to -10 °C range. Depending on exact daytime highs, the region could also see an erosion of the limited snow cover put down by Saturday night’s brief snowfall.

Long Range Outlook

Near-seasonal or seasonably mild temeperatures and dry weather looks to continue well into next week with little change expected through the first half. If anything, long-range forecast show that after a brief cool-down to near-seasonal temperatures at the end of this week, daytime highs might pop back up to around freezing to start next week.

So far, a notably mild November that will certainly help winter feel not quite so long this year!

Today’s seasonal daytime high in Winnipeg is -6 °C while the seasonal overnight low is -14 °C.

Another Brief Shot of Winter Ahead for Winnipeg

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Saturday will bring another day of seasonably mild weather in Winnipeg, but a cold front sweeping through the province will usher in colder weather for Sunday.

RDPS 2m Temperature Forecast valid 15Z Monday November 27, 2023
A colder air mass will settle over the eastern Prairies by Sunday night.

Temperatures will climb near the freezing mark again today in Winnipeg as warmer air floods into the southern Prairies. The region will see mixed skies today and winds will persist out of the southwest in the 20 to 30 km/h range.

There will be a notable change in the weather this evening. A low pressure system moving through central Manitoba will sweep a cold front across the province overnight. The front will bring a band of snow that pushes from Parkland Manitoba this early into the Red River Valley before midnight, then to the Ontario border by Sunday morning. Behind the front, moderate northwest winds up to 40 gusting 60 km/h will usher a colder air mass into the region. A few flurries may linger across the region overnight behind the front. Temperatures will fall to a low in the -5 to -10 °C range.

On Sunday, the northwest winds will continue across the region as temperatures continue to fall through the day. Skies will clear by the afternoon with temperatures dropping into the -10 to -15 °C range. With clear skies and winds diminishing, temperatures will drop further into the -15 to -20 °C range on Sunday night.

The cool temperatures will continue on Monday with sunny skies and a high in the -5 to -10 °C range. On Monday evening, a warm front will push eastwards across Manitoba, bringing some more snow as a milder Pacific air mass pushes back into the province.

Long Range Outlook

We could see some snow in the Red River Valley early Tuesday, but much of the snow should fall to the north and east. Temperatures will rebound into the -5 to 0 °C range for Tuesday afternoon.

The region should be another day with above-seasonal temperatures on Wednesday, then a return to seasonal values for the rest of the week.

Today’s seasonal daytime high in Winnipeg is -5 °C while the seasonal overnight low is -14 °C.

Colder Weather to Push Into Southern Manitoba

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There will be a shift in the weather across southern Manitoba this week as a cold front sweeps through the region and ushers in wintery temperatures. The cold snap will be short-lived, though, with a relatively quick return to near-seasonal conditions.

RDPS 2m Temperature Forecast valid 00Z Thursday November 23, 2023
An Arctic high will begin pushing into the Prairies on Wednesday night and allow colder air to spill southwards through the region.

After a rather busy period over the last few weeks, it’s nice to be back with some time to forecast. I hope you’ve all been able to enjoy the pleasant extended warmth so far this November. The cold weather will come eventually, so it’s nice to keep it at bay as long as possible late into the year.

Heading through the rest of the week, the main weather system will be a clipper-like system that tracks across the southern Prairies on Tuesday night into Wednesday. Daytime highs will continue to sit around 0 °C or a bit warmer as northwest winds taper off and shift to light southerlies. Winnipeg will see plenty of sun today, but some cloud will move in tonight and stick around into Wednesday morning.

A cold front will sweep through the region later on Wednesday, ushering in moderate northwest winds of 30 to 40 km/h. Skies will clear out with the winds and temperatures will begin to drop. An Arctic high will slump into the region, bringing much cooler weather with it.

For the second half of the week, overnight lows will dip into the minus teens; likely into the -15 to -20 °C range Wednesday and Thursday night, and then moderating into the -10 to -15 °C range for Friday night. Daytime highs will also follow suit, dipping into the -5 to -10 °C range.

Long Range Outlook

A disturbance will move into the region on the weekend, bringing some cloud and a chance for some light snow as well. With the cloud will come temperatures that moderate back towards seasonal values, dipping slightly cooler at times.

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