Mild Spring Temperatures Continue

Winnipeg will see a mixed bag of weather over the coming days, but the warmer spring weather isn’t going anywhere.

A ridge of high pressure moving across the Red River Valley will bring partly cloudy skies and light winds to Winnipeg today. Temperatures will stay seasonably mild with a high near 15°C. A disturbance moving across Saskatchewan will push showers into southwestern Manitoba through the afternoon. More cloud cover will build eastwards through the evening hours as temperatures head towards a low near +3°C. There will be a chance of showers tonight in Winnipeg, but they will likely remain west of the city.

Saturday will bring cloudy skies to Winnipeg as showers continue to sit over southwestern Manitoba. They’ll slowly creep eastwards through the day, but Winnipeg won’t see any chance for rain until late in the afternoon. It’s likely that much of the shower activity will slide to the south of the city as it tapers off in the evening. The cloudy skies will keep temperatures a bit cooler with a high near 13°C.

Overnight lows both Friday and Saturday night will be in the low single digits.

On Sunday, a strong low pressure system will track across the northern Prairies, spreading mild temperatures eastwards. Unfortunately, between the approaching low and departing high, windy conditions will develop over the Red River Valley. Southerly winds will strengthen to 40 gusting 60 km/h for the afternoon with temperatures climbing back up to 17°C. The morning will bring mixed skies, then clouds will move in through the afternoon as the disturbance begins moving into the Red River Valley.

Winnipeg will see a chance of showers on Sunday evening as the warm front moves through. The cloud cover will then begin breaking up as the wind drops off and temperatures dip to a low near 6°C.

Long Range Outlook

Next week will start off with mild temperatures possibly reaching 20°C before cloudier conditions develop for Tuesday with the chance of showers. After an unsettled Tuesday, mild temperatures will return with highs in the mid- to upper-teens through the rest of the week.

Today’s seasonal daytime high in Winnipeg is 14°C while the seasonal overnight low is +1°C.

Mild Friday Followed by Cooler, Unsettled Weekend

Spring weather arrives in Winnipeg today with plenty of sunshine and a return to seasonal temperatures. The weekend will bring unsettled conditions as a pair of disturbances move through.

Seasonal temperatures will return to Winnipeg today as a breezy southwest wind pushes milder Pacific air back into the region. Winds will strengthen to 30 gusting 50 km/h through the morning under sunny skies. As a low pressure system moves towards the province from the northwest, a few clouds will begin to arrive through the afternoon.

RDPS 2m Temperature Forecast valid 21Z Friday April 17, 2020
Seasonal temperatures will return to Winnipeg today thanks to a breezy southwest wind.

Skies will cloud over this evening as the low moves through the region, bringing with it a chance of showers. Winds will ease, then shift northwesterly overnight as a cold front swings through. The cloudy conditions will persist on Saturday with a lingering chance for showers gradually tapering off. It will be cooler on Saturday as northwest winds of 30 to 40 km/h limit temperatures to just a couple degrees above tonight’s low.

Skies will clear out later on Saturday afternoon, then winds will ease and temperatures will dip below freezing on Saturday night.

Another low pressure system will approach the region on Sunday, bringing increasing cloudiness and breezy west-southwest winds again. Temperatures will again climb into the mid-single digits. By the afternoon, a chance of showers will develop, but much of the precipitation is forecast to fall north of the area. Much of the cloud will stick around on Sunday night with a continued chance of showers or flurries.

Long Range Outlook

Conditions will improve next week when a more sustained period of seasonal temperatures moves into the region. A westerly flow will bring several disturbances across the province through the week, resulting in variable cloudiness and a few chances for rain.

Today’s seasonal daytime high in Winnipeg is 11°C while the seasonal overnight low is -1°C.

RDPS 2m Temperature Forecast valid 21Z Thursday October 24, 2019

Cool With An End-of-Week Warm Up

Winnipeg’s cool weather will stay for a couple more days, then warmer weather arrives for the end of the week.

A couple cool days are coming up for Winnipeg as an Arctic air mass remains entrenched over the region. The city will see a high of only 3°C today as northwest winds of 30 gusting 50 km/h continue. Skies will stay cloudy for much of the day as a combination of system1 and lake-effect cloud moves through.

As the day progresses and cooler air aloft pushes into the area, both Lake Winnipeg and Manitoba will likely begin to produce some lake-effect snow. Winnipeg may see some of this snow or rain in the morning. By the afternoon, the precipitation will mainly fall in the lee of the lakes. With a northwest wind, this will likely mean that Winnipeg will end up between a band of snow or rain showers to the west and to the east.

Lake-effect flurries are possible in the lee of the lakes today. The most likely areas to see precipitation will be in the lee of Lake Winnipeg.
Lake-effect flurries are possible in the lee of the lakes today. The most likely areas to see precipitation will be in the lee of Lake Winnipeg.

The lake-effect precipitation will taper off overnight as the winds ease and turn westerly. The city will see a low near -2°C as the cloud cover begins breaking up.

Thursday will be a cool day with a high of just +4°C. A ridge of high pressure moving through will keep the winds light, but skies will remain partly cloudy to mixed. A warm front pushing eastwards across the Prairies will spread a southerly wind into the Red River Valley on Thursday night along with a bit of cloud. Winnipeg’s low will sit somewhere around the freezing mark.

A return to seasonal warmth arrives on Friday as temperatures climb to a high near 10°C. The region will likely see a fair amount of cloud as the warmer air pushes as well as a strengthening southerly wind into the 30 to 40 km/h range. These breezy winds will persist through the night, keeping the low relatively mild at around 6°C.

Long Range Outlook

Seasonal warmth will stick around for Saturday, but a passing low will send a cold front sweeping through the region on Saturday night. While the Red River Valley won’t see much precipitation, it will plunge the region into an extended stretch of below-seasonal temperatures. There isn’t much rain or snow in the extended forecast, but with the cooler temperatures it’s likely that lake-effect flurries will be relatively common in the coming week.

Today’s seasonal daytime high in Winnipeg is 7°C while the seasonal overnight low is -3°C.

  1. “System” cloud is the cloud associated with a low pressure system.

Week’s Rainy Start Leads to Much Cooler Weather

More rain will move through the region today, followed by northwest winds and much cooler conditions.

Rain will move through the region today as a Colorado Low moves into NW Ontario. The rain will spread from southwest to northeast across the Red River Valley and have a sharp edge on the northwestern side. This will result in rainfall accumulations dropping from around 5 mm to nothing over a short distance. Winnipeg should see around 5 mm of rain, although the city could see a bit more if the band ends up shifting a bit west or east.

Generally speaking, the eastern Red River Valley into the southeast corner of the province will see 5 to 10 mm of rain. Narrow convective banding could result in localized accumulations of 10 to 20 mm. The western Red River Valley will see amounts generally around 5 to 10 mm in the southwest diminishing to nothing near Portage la Prairie.

While the NAM rainfall accumulations in the Red River Valley for today might end up a tad on the high side, the areas that will see rain look well-represented.
While the NAM rainfall accumulations in the Red River Valley for today might end up a tad on the high side, the areas that will see rain look well-represented.

Aside from the rain, highs today will be a seasonably cool 7°C in Winnipeg. A brisk northwest wind will develop through the day, picking up to 30 gusting 50 km/h this afternoon. The wind will then increase to 40 gusting 60 km/h this evening. While the rain will taper off later today, the chance for showers (or eventually flurries) will persist overnight. Temperatures will dip to a low near +2°C.

Cloudy skies will continue in Winnipeg on Tuesday with a continued chance for some scattered showers or flurries. The moderate northwest winds will continue and temperatures will cool with a high of only 5°C. Skies will stay cloudy on Tuesday night with winds beginning to ease as temperatures head to a low near 0°C.

The sun might be able to poke out on Wednesday, but Winnipeg will likely continue to see mainly cloudy skies. The cold air will continue to push into the region, keeping highs cool at just +3°C. Winds, while lighter than Tuesday, should still persist out of the northwest at 20 to 30 km/h. The cloud cover will begin to break up a bit on Wednesday night as the winds finally ease. Winnipeg will see a low near -3°C on Wednesday night.

Long Range Outlook

The rest of the week should bring mixed skies to the city and dry conditions. The cool weather will persist on Thursday, but seasonal temperatures may return (alongside some cloud) for the end of the work week into the weekend.

Today’s seasonal daytime high in Winnipeg is 8°C while the seasonal overnight low is -2°C.