An upper ridge moving into the Prairies will gradually bring hot, humid weather back to southern Manitoba.
After a cooler end to the weekend, temperatures are on their way back up across southern Manitoba. An upper ridge will amplify as it pushes east across the Prairies over the coming days, bringing mixed to sunny skies and increasing heat.
After any remaining fog and/or stratus cloud burns off this morning, the region should see mainly sunny skies. Temperatures will climb to a seasonal high in the mid-20s with light winds. It will cool into the mid-teens tonight with clear skies.
A warm front will push into the region on Wednesday, but skies will stay mainly sunny as it moves in. Daytime highs will push into the high 20s as southerly winds pick up into the 30–40 km/h range. The comfortable humidity levels of Tuesday will begin to give way to higher humidity on Wednesday. Temperatures will dip to a low near 20 °C on Wednesday night. Skies will be partly cloudy with an isolated thunderstorm or two possible with the warm front passage overnight.
On Thursday, hot and humid conditions will return with daytime highs in the low 30s with dew points back near 20 °C. These muggy conditions will make it feel like the upper 30s. A cold front and cloudier skies will move into the region late in the day. It will bring a risk of thunderstorms to the Red River Valley beginning late in the afternoon through the evening hours. Overnight lows should dip down into the upper teens on Thursday night as southerly winds ease and shift northerly.
As is the concern this summer, when the northerly winds move into the region, there will likely be plumes of wildfire smoke of varying intensity that move into southern Manitoba with them.
Long Range Outlook
On Friday, cloudier conditions will likely linger through the morning with a chance of showers. The sun should show up in the afternoon, but temperatures will be cooler in the low 20s with comfortable humidity levels and northwest winds.
The rest of the weekend should bring mixed skies and a return of seasonably mild temperatures with comfortable humidity levels.
Today’s seasonal daytime high in Winnipeg is 26 °C while the seasonal overnight low is 13 °C.
