Last week’s forecast was not too bad. We did see temperatures fluctuate between one or two days of warm and then a couple of days of cool weather. It was also fairly unstable, with several systems bringing clouds, showers, thundershowers, and even some thunderstorms.
For this forecast period it looks like July is going to begin where June left off – unsettled. An area of low pressure will track across the southern Prairies on Wednesday and Thursday, bringing with it more clouds, showers, and thundershowers. Temperatures will be around average, with daytime highs in the low to mid-20s depending on the amount of sunshine. Overnight lows will be mild, only falling to around 14 C.
Behind this low the weather models are showing a cooler pool of air in the upper atmosphere drifting southwards on Friday. Should this occur, it will bring a mix of sun and clouds along with slightly cooler temperatures. Over the weekend, high pressure is forecasted to build, allowing skies to clear and temperatures to warm back into the mid-20s under light winds.
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As this ridge of high pressure slides off to the east during the first half of the week of July 4, it looks like we will see a return to more unsettled conditions. It does not look like we will see any large systems bringing all-day showers or rain, but rather weak systems bringing the chance for showers or thundershowers pretty much each day from Monday to Wednesday. Temperatures will be seasonable, with daytime highs continuing to be in the mid-20s, with some regions seeing the upper 20s or maybe even 30 C with enough sunshine.
Looking further ahead, this unsettled pattern looks to continue, but with no large storm systems expected.
Usual temperature range for this period: highs, 21 to 30 C; lows: 10 to 17 C.
