More Hot Weather

The hot weather that’s been situated over Southern Manitoba for much of the last few weeks will continue through the remainder of the week as a broad upper-level ridge builds into the region. The weather will become more unsettled towards the end of the week, though, as the upper ridge begins to “flatten out” and multiple disturbances trundle across our region.

500mb flow forecast by the NAM shows a prominent upper-level ridge over the Prairies.
500mb flow forecast by the NAM shows a prominent upper-level ridge over the Prairies.

Beautiful Wednesday on Tap

Today will be a gorgeous with mainly sunny skies and warm temperatures as the high climbs to around 26°C this afternoon. Winds will be light thanks to a ridge of high pressure at the surface that will be pushing off into northwestern Ontario by the end of the day.

26°C / 15°C
Mainly sunny

Tonight will see a chance for some showers or thunderstorms as a low pressure system pushes across southern Saskatchewan and into southern Manitoba through the overnight period.

As the night progresses, a warm front will slowly push eastwards towards the Red River Valley, bringing warmer air aloft and the slight chance for some showers or thunderstorms sometime in the second half of the overnight period. The risk really is quite minimal; in general there may be a little too much warm air aloft which would inhibit the development of any shower or thunderstorm activity.

Thirty on Thursday

Thursday will be an absolute scorcher as Winnipeg moves into the warm sector of the low pressure system moving through. Daytime highs will climb into the low 30’s through the Red River Valley with, mercifully, dewpoints around 16°C making for not-too-humid conditions.

Sunny and hot
Thursday Night
Partly cloudy; risk of a thunderstorm

Thursday night will bring a slight chance for some thunderstorm activity. As things begin cooling off in the evening, moisture advecting into the region may end up destabilizing the lower levels of the atmosphere. If any storms develop, there would be a low risk for any severe weather, although there may be a risk for marginally severe hail should all of the instability be realized.

Unsettled Friday

Summer will continue in full swing on Friday as daytime highs approach the 30°C mark again but will likely remain just shy of it at around 28 or 29°C. The humidity will be more noticeable as dewpoints climb into the high teens or perhaps even break the 20°C mark, making it feel closer to the mid–30’s than the high 20’s.

29°C / 15°C
Mixed skies and warm; risk of a thunderstorm

Skies will be mixed with the potential for more shower or thunderstorm activity as the low pressure system pushing into the province brings some instability with it. Any shower or thunderstorm activity that develops will likely be somewhat scattered in nature, however isolated strong storms will be possible.

Temperatures will dip down to the mid-teens on Friday night under partly cloudy skies.

Warm Weekend Ahead

The warm weather will continue right through the weekend with highs in the upper 20’s both Saturday and Sunday and comfortable humdity.

Saturday looks quite nice with mainly sunny skies, lower humidity and light winds making for a stellar late-summer day. Nothing to complain about there.

Sunday will be warm, although it will be cloudier than Saturday was. Some showers or thunderstorms look to be possible late in the day through overnight as another low pressure system swings through the province.


Brad lives in Winnipeg with his wife and two children and is the founder of A Weather Moment. He has loved weather from a very young age and has followed that passion through his life so far. He received a B.Sc. in Earth Sciences with Specialization in Atmospheric Sciences and is currently employed in the field of meteorology. You can find the author as WeatherInThePeg on Mastodon.

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