High Pressure Brings Seasonal Summer Conditions

A series of high pressure systems tracking through Manitoba will bring dry weather with seasonal temperatures to the region over the next couple days.

RDPS 2m Temperature Forecast valid 21Z Saturday June 14, 2025
Benign high pressure over Manitoba will bring seasonal temperatures over the next couple days.

A weak upper-level ridge over the Prairies will keep persistent high pressure over Manitoba for a couple more days. Daytime highs today and tomorrow will sit in the mid-20s while overnight lows will likely dip into the low teens. Winds both days should sit out of the southeast in the 10 to 25 km/h range. Fortunately, these winds will help keep the air smoke-free. The days should bring plenty of sunshine with afternoon clouds possible.

On Sunday, a low pressure system will push into central Manitoba. Southwest winds will push temperatures into the upper 20s with dew points climbing into the mid-teens. It’s been dry much of this spring and while it won’t be “humid,” you’ll be much more likely to notice the humidity out there on Sunday afternoon. There will be a slight chance of showers or thunderstorms on Sunday evening. Temperatures will head down to a low in the 15 to 20 °C range on Sunday night with winds easing to light northerly.

Long Range Outlook

Monday will likely bring more unsettled weather as the influence of the departing low gradually wanes.

It looks warmer next week with daytime highs in the mid- to upper-20s through much of the week and overnight lows in the mid- to upper teens. With that, there will be more chances for showers or thunderstorms as a few systems move through in the course of the week.

The more active pattern could bode well for the fires over central Saskatchewan and Manitoba with accumulating rain possible across those areas.

Today’s seasonal daytime high in Winnipeg is 23 °C while the seasonal overnight low is 10 °C.

Sunny and Warming Weather Ahead

It’ll be nothing but sunshine — and perhaps smoke — as temperatures warm up through the weekend.

RDPS 2m Temperature Forecast valid 21Z Sunday May 25, 2025
Warmer weather will build back in across the Prairies this weekend.

Today’s forecast will be one of the easier ones in a while…sunshine and warmer weather ahead!

An upper ridge parked over the Prairies will keep an area of high pressure entrenched over Manitoba through the coming days. This will keep skies mainly sunny in the days ahead with light winds that shift around as the main axis of high pressure shifts its position through the weekend.

Daytime highs will sit in the 20–25 °C range this weekend with overnight lows in the 0—5 °C range warming up into the 5–10 °C range to end the weekend.

The biggest wildcard in the forecast will be smoke. The Nopiming Provincial Park wildfire has re-intensified and is pouring out substantial amounts of smoke, and there are other wildfires in southeastern Manitoba that have begun to perk back up. With light winds under the ridge in coming days, the smoke will likely pile up in the region, but who is impacted it will depend on the precise wind directions and how it changes over time.

It’s likely that the Winnipeg area will experience hazy conditions at times in the days ahead, and may see periods of degraded air quality with near-surface plumes of smoke moving through. For areas east of the Red River Valley, air quality will be very poor at times downwind of the Nopiming Provincial Park wildfire.

Long Range Outlook

The sunny weather continues into next week, but temperatures will increase into the upper 20s as the week progresses.

All in all, while conditions are pleasant, the next week will do little to ease the fire danger in the province. Light winds will help, but one hopes we don’t see too many new fires flare up in the days ahead.

Today’s seasonal daytime high in Winnipeg is 21 °C while the seasonal overnight low is 7 °C.

Warming Up This Week

After one more cooler day, temperatures in Winnipeg will warm back up to seasonal values for the second half of the week.

RDPS 2m Temperature Forecast valid 21Z Thursday May 22, 2025
Seasonal temperatures will return to much of Manitoba by the latter half of the week.

Today will bring cloudy and cool weather to Winnipeg. The main weather feature will be a band of rain stretching from a low pressure system crossing the American Plains into southwestern Manitoba and eastern Saskatchewan. This will likely bring showers to the southern Red River Valley today while Winnipeg will have a chance of seeing rain if it ends up grazed by the eastern edge of the precipitation as it pushes northwest.

The cloudy weather will come alongside easterly winds of 20–30 km/h and a high in the mid-teens. Rainfall totals will likely range from anywhere from as much as 10 mm of rain over the far southwestern Red River Valley to a trace of rain further northeast.

Temperatures will dip down into the mid-single digits as the cloud cover breaks up overnight.

Wednesday will bring a building ridge of high pressure into the region. This should bring partly cloudy skies to the region with light easterly winds. With more sunshine, temperatures will climb higher than today, topping out in the upper teens. Wednesday night will bring clear skies and temperatures dipping down into the mid-single digits.

Thursday will bring mainly sunny skies and a high near 20 °C. Winds will pick up out of the northeast to around 20 km/h for much of the day. The winds will shift southeast overnight as temperatures head to a low in the 5–10 °C range.

At this point, it doesn’t appear that smoke will be much of an issue in the days ahead. The recent rain and cooler weather has dampened the fire activity in southeastern Manitoba. We’ll monitor the fires through the week as conditions dry out and the weather begins to warm again.

Long Range Outlook

The weather looks benign into the weekend the weekend with variable cloudiness and highs hovering near the low 20s. Overnight lows will sit in the 5–10 °C range.

A push of warmer weather along with a chance of showers or thunderstorms is possible later next week.

Today’s seasonal daytime high in Winnipeg is 21 °C while the seasonal overnight low is 6 °C.

More Warm Weather Ahead in Winnipeg

After a brief one-day break with seasonal temperatures, warmer weather will gradually build back into southern Manitoba.

RDPS 2m Temperature Forecast valid 03Z Thursday May 8, 2025
Wednesday evening’s Whiteout Street Party will start with pleasant temperatures in the upper teens in downtown Winnipeg.

Seasonal temperatures return to the Red River Valley today behind a cold front that moved through the region overnight. Northerly winds will continue through the day near 30 gusting 50 km/h as temperatures climb to a high in the upper teens. The wind will die off tonight as a ridge of high pressure moves in and sends temperatures down into the low single digits.

An upper ridge will begin to build back across the Prairies mid-week, bringing more sunshine and warmth to the region. On Wednesday, temperatures will climb to around the 20 °C mark with light southeast winds developing in the afternoon.

Wednesday evening’s Whiteout Street Party for Game 1 against the Dallas Stars should see temperatures near 16 or 17 °C at puck drop that cool to around 11 °C by the end of the game. The low overnight will dip down into the upper single digits under clear skies.

Warmer weather returns for Thursday as daytime highs climb into the mid- to upper-20s as southerly winds of 30 to 40 km/h redevelop over the region. Those southerly winds will ease and turn northerly on Thursday night as a weak cold front pushes through the region. It may bring clouds and a chance of showers overnight into early Friday morning. Temperatures will head to an overnight low in the low teens.

Long Range Outlook

Friday and Saturday are looking like they will bring seasonal to mild temperatures to the region along with an end to the sunny skies with cloud cover possible later Friday into Saturday. Showers may be possible Saturday night as warmer air pushes into the region. Sunday will be another hot day with highs in the upper 20s possible. That heat will likely build into Monday and bring the chance for Winnipeg’s first 30 °C day of the year.

For Friday’s Whiteout Street Party, the weather should be similar to Wednesday with the only notable difference being a more noticeable northerly breeze. Which, to be honest, will likely be low down on the “things to notice” list if you’re planning on heading downtown for the game.

Go Jets go!

Today’s seasonal daytime high in Winnipeg is 17 °C while the seasonal overnight low is +3 °C.