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Ontario: Slow return to seasonal, but with unsettled skies

Sunday, August 25th 2019, 9:21 pm - A fall-like nip was in the morning air this past weekend, but summer's not over just yet.

A slight fall-like chill marked the mornings this past weekend, though with abundant sunshine throughout the day. Seasonal temperatures continue into Monday, but with clouds on the rise with a risk of showers by the afternoon for the southwest. Unsettled conditions return once again later Tuesday, with the risk of non-severe thunderstorms. Finally, forecasters keeping an eye on the late week and into the long weekend, with more unsettled weather expected, below.


WEATHER HIGHLIGHTS:

  • Monday looks about seasonal, with some increasing cloud cover
  • Unsettled conditions return early in the new week, rising humidity mid-to-late week
  • Further cooling expected into the Labour Day long weekend
  • Stay on top of ALERTS in your area

A TEMPERATURE 'BATTLE ZONE' TO WRAP UP THE MONTH

Though slightly below seasonal, this past weekend was marked by clear skies, and the sunshine will stretch right into the new week.

Monday will be another day of sunshine, though with increasing cloud cover and the chance of some showers in the southwest, possibly reaching the GTA by the evening. Temperatures recover to about seasonal -- warmer, but not a return of the blistering heat that has marked much of the season.

on forecast

It will be hard however, for any pattern -- warm or cool -- to take a firm hold on the region.

"An active pattern is expected through the Great Lakes region as another round of cooler weather surges south into the Prairies and attempts to spread east, making this region the battle zone between air masses," says Weather Network meteorologist Dr. Doug Gillham.

On Tuesday, for example, showers and thunderstorms return, lasting into Tuesday night, though there will be some rain-free periods during the day.

ONRisk

The threat for showers could linger into Wednesday morning for eastern Ontario followed by some sunshine for the afternoon.

IS THIS OUR GOODBYE TO SUMMER?

Any sort of 'last blast' of summer heat will really struggle to lock in through the end of August as well, with cooler weather expected to return to the Great Lakes region into the end of the week, though the timing is somewhat uncertain. As for whether

"If the front stalls just to our west (as shown by some models), then temperatures would be above seasonal to start the long weekend," Gillham says, "However, at this point the more likely scenario looks to be a cool start to the long weekend (and a threat for rain on Saturday) followed by near seasonal temperatures by Labour Day."

WATCH BELOW: LATE AUGUST WEATHER COMPLICATED BY TWIN TYPHOONS

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