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Cooling down in southern Ontario

April 17, 2010 — After a stretch of sunny skies and record-breaking heat, temperatures in southern Ontario will be cooling off today.

It won't quite be winter jacket weather -- but it will be close.

Temperatures dropped dramatically over the past 24 hours, making it chilly for this time of year. The high for today is forecast to hover around 7 degrees. Isolated showers are also expected to pop up all across the Lower Great Lakes Region. This is quite the quick turnaround from yesterday, when Toronto hit a mild high of 21 degrees.

“That's a 15-degree drop,” says Weather Network meteorologist Greg Stephens. “And it will be noticeable.“

It's all due to the upper low hanging out over Southern Quebec, and it's bringing colder air in from the north. Stephens continues, “the lack of sunshine isn't doing us any favours, it's keeping us very cool.“

It's especially interesteing considering how comfortable the conditions were this week.

Most days were filled with sunshine and temperatures in the double digits. In Windsor, the temperature sky rocketed close to 30 degrees. 28.6 was the exact number of the day, breaking a record of 28.5 set back in 2003. Chapleau, Geraldton, Sault Ste. Marie and Wiarton were some of the other spots that wrote a new page in the record books on Thursday.

Meanwhile, if you're in areas north of the city, like Barrie or Collingwood you may find yourself in the middle of some isolated flurries and ice pellets! For tomorrow, southern Ontairo can expect the few remaining showers to dry up by late morning. Come the afternoon, temperatures will warm-up to seasonal, put keep in mind, you'll still need your jacket.

For more details on what you can expect as we head into the weekend, make sure you tune into The Weather Network on TV. Your Regional Forecast comes up at the top and bottom of every hour.

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