There were a couple of issues with last week’s forecast. The first was the strength of the area of high pressure that moved through our region and took up position over Ontario late in the week. The second was a weak upper low that kind of got stuck on the western edge of the Ontario high, and brought more clouds and showers to western regions late last week, and slowed down the cold front to Sunday.
For this forecast period it looks like above-average fall temperatures will continue, along with fairly dry conditions. An area of high pressure is expected to slide across the Prairies during the middle of the week, bringing plenty of sunshine along with daytime highs in the mid-teens and overnight lows in the low single digits. This high should keep an area of low pressure to our south on Wednesday and Thursday, but southern regions may see some clouds from this system.
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To start the weekend, a weak area of low pressure is forecast to slide southeastward through the northern Interlake, bringing clouds and showers to that region. Farther to the west, a large area of low pressure will begin coming on shore over northern B.C. and Alaska. Some of the energy from this low will move across the northern Prairies Sunday and Monday, bringing rain to those regions. Farther south, we’ll see dry, sunny and warm weather as a fairly strong southerly flow develops ahead of this low. I wouldn’t be surprised if we see daytime highs make it into the low 20s on Sunday or Monday before the low zips by and drags a cold front through southern and central regions on Tuesday.
It currently looks like this cold front will only bring a few scattered showers and only slightly cooler air with it for the middle of next week.
Usual temperature range for this period: Highs, +7 to +18 C; lows, -4 to +6 C.
