The weather is taking an abrupt turn today as significantly cooler air moves into Southern Manitoba behind the low pressure system that brought numerous thunderstorms to Winnipeg & area on Wednesday night.
Today will see unseasonably cool temperatures as a high pressure system moving into Manitoba draws air from the Arctic and ushers it southwards into the province. The cool air, coupled with the August sun, will result in plenty of cloud and some scattered showers through the afternoon. With a northwesterly wind of 20-30 km/h, temperatures will climb to a high near 20°C.
Skies will remain fairly cloudy tonight as cool air continues to push southwards. For areas in the western Red River Valley, it appears that the Arctic air will trigger some lake-effect showers that will move southwards off of Lake Manitoba. There’s a lesser chance that similar showers will develop off of the south basin of Lake Winnipeg as well. Winnipeg will end up tucked between the two and should remain dry for much of the night. Expect overnight lows to dip down to around 8 or 9°C.
Saturday will be a drier day with the cool weather continuing. Daytime highs will climb to around the 19°C mark under mixed skies. Skies will clear out for Saturday night for another cool one with overnight lows near 8°C.
Sunday will return to closer to seasonal temperatures with highs near 24°C under mainly sunny skies. There will be a bit of cloud moving through later in the day as warmer air begins moving into the region, but no precipitation is expected in the Red River Valley with it at this point.
So, while it will be cooler, we’ll get a short break from the severe weather threat that has been so frequent the past few weeks across Southern Manitoba. Next week looks like a bit of a mixed bag with dry, warm weather through the first half of the week being replaced by cooler, more unsettled weather in the second half.
Winnipeg’s seasonal daytime high is currently 24°C while the seasonal overnight low is 11°C.
