Thursday will be a hot day across Manitoba , high temperatures in the 30’s are possible for the SW portion of Manitoba.
Southern Manitoba will have an exceptional day weather wise Wednesday, a area of high-pressure will be sitting over Manitoba bringing in calm winds and stable conditions. Partly cloudy skies are expected with high temperatures in the mid to high 20s across much of southern Manitoba areas around the lakes will be in around the low 20s. A high temperature of 26°C can be expected for the city of Brandon and a high temperature of 27°C can be expected for Winnipeg.
Overnight Wednesday into Thursday expects scattered to broken clouds with overnight low temperatures for much of the province dropping into the mid to high teens with areas in the Interlakes dropping to the low to mid teens. A low temperature of 17°C can be expected for the city of Winnipeg a low temperature of 15°C can be expected for Brandon.
Thursday the area of high-pressure should be moving east into Ontario so the winds will be out of the south to south south east. The heat starts kicking in on Thursday with High temperatures soaring into the high 20s to low 30s for the majority of the day. Humidex values will be in the 30 to 35°C range, some areas may surpass 37C humidex readings . A high temperature of 31°C is expected for Brandon and a high temperature of 30°C is expected for Winnipeg. There will also be a risk for some thunderstorms isolated in nature mainly in southwestern Manitoba .
Heading into the evening and overnight in south western portions of Manitoba an area of low pressure with a trailing cold front is expected to approach the Manitoba border. The risk for thunderstorms and severe weather would start in Saskatchewan with the risk extending east into Manitoba throughout the evening into the overnight hours . Current model guidance is not showing much indication of organized convective activity, we at Manitoba weather centre will update any changes to the outlook right now it looks like scattered thunderstorms are going to be possible for the night on Thursday into Friday. Overnight lows are expected in the mid to high teens for the majority of southern Manitoba a low temperature of 17°C can be expected for Brandon and a low temperature of 18°C can be expected for Winnipeg.
The forecast for Friday gets a bit more complicated , The previously mentioned cold front across southern Manitoba during the overnight hours and will sit in south eastern portions of Manitoba by the morning hours on Friday. Current indications on the position of the front shows there may be a possibility of a severe weather set up with the risk of some severe thunderstorms particularly along and south of the TransCanada highway Into Southeastern Manitoba. If the front moves further north than expected the severe weather threat could extend into regions along and south of the lakes into the Interlake region. Well let you know what evolves on Friday . The front will gradually sag south throughout the day on Friday . So for Friday expect a mix of sun and cloud and a chance for showers or thunderstorms, severe thunderstorms are possible mainly in SE areas and border regions of Manitoba. High temperatures will be in the mid to high 20s across the majority of southern Manitoba. High temperature of 25°C can be expected for Winnipeg and a high temperature of 28°C can be expected for Brandon. If the front manages to sneak a bit further north temperatures will be more so in the high 20s to low 30s but at this moment it looks like the majority of the heat will be on the other side of the US border.
Overnight lows on Friday are expected to be in the low to mid teens with some areas in the southwest especially in rural regions Maci overnight lows just in around 10°C. The overnight low of 14C can be expected for Winnipeg and a low of 10°C can be expected for Brandon.
Heading into the weekend an area of high-pressure looks to slide south from northern Manitoba. Comfortable and stable conditions are expected and high temperatures in the mid to high 20s. The next chance for unsettled conditions is possible by early to mid week next week.