Warmer Weather Pushing in For Saturday, Then Cooler With Showers

It will be a windy transition day in Winnipeg today as a warm front pushes across the region. Heading through the weekend, a mild Saturday will give way to unsettled conditions on Sunday.

A warm front will push eastwards across the province today, bringing afternoon cloud and breezy southerlies to Winnipeg. Temperatures will climb to a high near 13 °C with south winds increasing to 40 gusting 60 km/h midday. The city will see a sunny start to the day, but clouds will move in for the afternoon ahead of the warm front. There may be a slight chance of a rain shower in the evening as the front moves through, then skies will clear up for the night. The city will see a low near 5 °C with easing winds.

An upper ridge over the region will bring mild weather to Winnipeg on Saturday. Under partly cloudy skies, the city will see a high near 21 °C with northerly winds up to 20 km/h. More organized cloud cover will begin to move into the region late in the day as an upper trough approaches. There will be a chance of showers overnight with a low near 6 °C.

RDPS 2m Temperature Forecast valid 21Z Saturday May 1, 2021
Southern Manitoba will see daytime highs climbing into the 20s on Saturday.

On Sunday, skies will stay on the cloudier side as the upper trough slowly moves through the region. Some sunny breaks are likely, but the region will also see a good chance of showers. Winds will stay out of the north at 20–30 km/h and highs will be cooler at around 13 °C. The chance for showers will taper off Sunday night with a low near +1 °C.

Long Range Outlook

Forecasts show a fairly stable pattern next week with daytime highs in the low to mid-teens and overnight lows in the 0–4 °C range. The start of the week is forecast to be fairly sunny, though mid-week might be a bit cloudier. The forecast shows no notable chances for rain.

Today’s seasonal daytime high in Winnipeg is 16 °C while the seasonal overnight low is 2 °C.

Spring Weather Here to Stay

A broad pattern change will bring Winnipeg milder spring conditions through the next week.

While today won’t be quite as beautiful as Tuesday was, the city will enjoy a great start to the day. Under mixed skies temperatures will quickly climb to a high near 15 °C with light winds. Winnipeg will find itself close to a SW–NE frontal boundary that will slide eastwards in the afternoon. By late-afternoon, moderate northerly winds of 30–40 km/h will push cooler temperatures into the region. The frontal passage will bring cloudier skies with a few showers late in the day into the evening hours.

Cooler temperatures will push in overnight with diminishing winds. Skies will clear out with a low near -3 °C.

The cool temperatures won’t stick around, though. On Thursday, temperatures will quickly rebound back to a high near 12 °C. The city will see plenty of sunshine with partly cloudy skies and winds will be light much of the day. Northwest winds will pick up to around 20 km/h this evening as an area of high pressure moves in. Temperatures will dip to a low near -1 °C overnight with clear skies.

RDPS 2m Temperature Forecast valid 21Z Friday April 30, 2021
A warm front will move into Manitoba on Friday, bringing windy conditions to the Red River Valley and much warmer conditions to the southwest corner of the province.

Friday will start off sunny, but an approaching warm front will bring clouds for the afternoon. Temperatures will climb quickly through the morning to a high near 16 °C. Southerly winds ahead of the front will strengthen into the 30–40 km/h range for the afternoon. This warm front will support some rain as it pushes east, but it will stay well north of the Red River Valley. The rain is forecast mainly for central and northern Manitoba and it should stay dry this far south.

The clouds will break up on Friday night with gradually easing winds and a mild low near 6 °C.

Long Range Outlook

Winnipeg’s weekend looks great with plenty of sunshine and highs in the mid- to upper-teens. The seasonal temperatures will continue into the start of next week, but a few disturbances moving through on Tuesday/Wednesday are forecast to bring more cloud and a chance of showers to the region.

Today’s seasonal daytime high in Winnipeg is 15 °C while the seasonal overnight low is 2 °C.

Gradually Cooling in Winnipeg, Unsettled Friday Possible

Winnipeg will see temperatures gradually cool through the rest of the week with a chance for a few showers across the region on Friday.

Winnipeg’s weather over the coming days will be increasingly influenced by a slow-moving low pressure system in the United States. This low, over the Central Plains this morning, will gradually trundle northwards into Minnesota and Wisconsin by Friday. As it moves north, cloud cover will creep northwestwards and cooler temperatures will shift into the Red River Valley.

Winnipeg will see partly cloudy skies today with a weak ridge over the region. The city will see a high near 17 °C with a north breeze picking up this afternoon to 20–30 km/h. Skies will stay partly cloudy tonight with light winds and a low near +2 °C.

That weak ridge will stay in place over southern Manitoba for Thursday. On its flanks, a low over Saskatchewan will lift sharply northwards into Nunavut while to the southeast, the American low slowly lifts through Iowa. Winnipeg will see mixed skies with a high near 13 °C. Winds should be out of the northeast at around 20 km/h for much of the day. The ridge will leave overnight as a trough connecting the Nunavut low and the American low moves into the Province. Temperatures will head to a low near +3 °C with increasing cloudiness and a chance of rain showers.

RDPS 24hr. Accumulated Precipitation valid 12Z Saturday April 10, 2021
Rain will clip southeastern Manitoba on Friday, but there’s uncertainty how far west some lighter shower activity may reach.

On Friday, a sharp deformation zone will set up along a north-south line near the Red River Valley. To the east of this feature, showers will stream from Minnesota northwards towards Lake Winnipeg. To the west, it will stay dry. While the region will see a mostly cloudy day, the chance of rain will be highly sensitive to the exact location of this feature. While rain is likely over southeastern Manitoba, that chance becomes significantly more conditional in the Red River Valley. There will be a breezy north-northwest wind through the day around 30 km/h keeping highs cooler at around 9 °C.

The clouds will begin to break up Friday night as the system begins pushing off to the east. The winds will ease as temperatures head to a low near -1 °C.

Long Range Outlook

The region should see quiet weather for much of the weekend with variable cloudiness and highs of 10–15 °C. By Sunday night, forecasts show a clipper system moving out of southern Alberta and phasing with a low over eastern North America. This will produce the chance for the first significant precipitation event over southern Manitoba in some time. There is significant uncertainty right now, but forecasts suggest a windy winter storm will move through the region on Monday and Tuesday with potentially 10–15 cm of snow.

Temperatures are forecast to hover near or slightly above the freezing mark with this system, so it’s unlikely that much snow would accumulate, as it will compact and melt through the days. The potential exists for a bit of an unpleasant start to next week, but many would welcome the moisture that the storm may provide.

Today’s seasonal daytime high in Winnipeg is 7 °C while the seasonal overnight low is -4 °C.

Warm Weather With Mixed Skies

Winnipeg will see warm weather continue this week with variable cloudiness over the coming days.

The city will see a mild start to the day with temperatures quickly warming to the high near 14 °C through the morning. By midday, a cold front will begin to sweep across the Red River Valley. This will bring increasing cloudiness and a low chance of rain showers as it passes. Behind the front, moderate northwest winds of 30–40 km/h will push into the Red River Vally for the afternoon with temperatures cooling slightly. The cloud cover will push out later in the day as an area of high pressure builds into the region. Winnipeg will see temperatures dip to a low near -2 °C tonight under clear skies and light north winds.

RDPS 2m Temperature Forecast valid 18Z Monday April 5, 2021
Winnipeg will see Monday’s warmest temperatures midday before a cold front moves through the region.

On Tuesday, a broad area of high pressure will work across the region. Temperatures will still stay mild as the strengthening April sun warms the snow-free ground in Winnipeg and the Red River Valley. The city should see a high near 13 °C with light north winds. The high will also keep skies sunny right through the day. Skies will stay clear on Tuesday night with a low near the freezing mark.

On Wednesday, a pair of low pressure systems will begin to impact the region. The first will be over the United States and will spread cloud and precipitation across southeastern Manitoba into northwestern Ontario. This system will stay southeast of Winnipeg and area, only spreading some partly cloudy skies this far west or north. Winnipeg will see a high temperature near 16°C (or perhaps a degree or two cooler if it ends up cloudier). The second low will begin pushing into Saskatchewan through the day and start building warmer weather into the region. This low will spread some cloud cover into the region overnight as temperatures head to a low near +2 °C.

Long Range Outlook

A more unsettled pattern will develop for the second half of the week, bringing cloudier conditions to Winnipeg. There is little agreement on the overall pattern progression, though, and whether or not the region will see any rain is still a big question. There will the potential for a few rain showers, but no particularly notable rainfall amounts are in the forecasts with only a few mm possible here and there. Temperatures will slowly ease back towards seasonal values into next week.

Today’s seasonal daytime high in Winnipeg is 7 °C while the seasonal overnight low is -5 °C.