A July heat wave is possible

Summer weather definitely arrived last week with plenty of heat, humidity and even a few thunderstorms. It looks like this pattern will continue for much of this forecast period. Fortunately, it looks like we may miss the extreme heat the U.S. is experiencing during this forecast period, but it still looks like it will be fairly warm.

Wednesday looks to be the hottest day of this forecast period as an area of low pressure pushes through the northern Prairies. We could see a few thunderstorms late Wednesday as a weak cold front slides through. On Thursday and Friday we will see slightly cooler conditions, with high temperatures expected to be in the mid-20s. Along with the cooler temperatures, humidity values should be a little lower.

High pressure looks to dominate the weather over the weekend and with the strong July sunshine, we’ll see high temperatures climb back towards the low 30s. Along with the increasing heat we will also see an increase in humidity. This will lead to some scattered thunderstorms late on Sunday.

High pressure looks as if it will also be in control for at least the first half of next week. This means that the warm/hot temperatures will continue, with highs once again expected to be in the low 30s and overnight lows in the upper teens to around 20 C. The area of high pressure bringing all the sunshine and heat will slowly move off to the East by mid-week. This will place us in a southerly flow that will bring in more moisture by around Wednesday. This will help set the stage for slightly more active weather for the second half of next week.

Usual temperature range for this period: Highs, 22 to 31 C; lows, 10 to 18 C.

About the author

Co-operator contributor

Daniel Bezte

Daniel Bezte is a teacher by profession with a BA (Hon.) in geography, specializing in climatology, from the U of W. He operates a computerized weather station near Birds Hill Park.

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