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ONTARIO | Long weekend outlook

Skies clear, FROST advisories in effect for southern Ontario


Digital writers
theweathernetwork.com

Sunday, May 20, 2018, 9:38 PM - It's the "unofficial kickoff to summer" - the much-awaited May long weekend. A gloomy Saturday gradually gave way to clear skies Sunday, and here's a look toward Monday.


WEATHER HIGHLIGHTS:

  • Frost advisory in effect for swath of southern Ontario, temperatures could dip to zero overnight
  • Risk of isolated shower through southwestern Ontario Monday afternoon, through GTA overnight into early Tuesday
  • Mild temperatures through new work week

(COTTAGE REPORT: UNOFFICIAL START TO SUMMER HAS ARRIVED. CHECK OUT OUR COTTAGE REPORT & START PLANNING!)

After a day of sun and cloud, Sunday finishes out with seasonal temperatures, but a chilly night and early morning is ahead, with frost advisories issued for a swath of the region, including Cottage Country.

"Clear skies and light winds will allow temperatures overnight to drop to near zero degrees," says the agency. "This will result in the formation of patchy frost overnight. Cover up plants, especially those in frost-prone areas."

VICTORIA DAY MONDAY - THE BEST OF THE WEEKEND

Some may consider this to be poorly timed, but Monday still seems to be the best weather day of the long weekend for most. Just as cottage goers are packing up to head home, a mix of sun and cloud (more sunshine towards Cottage Country) and high temperatures in the upper teens to lower 20s look to dominate Monday's forecast.

While most of the day should be dry, forecasters are watching for the slight risk of an isolated shower through southwestern Ontario Monday afternoon. There is also the chance for a light shower across the GTA overnight into early Tuesday. 

(Stay up-to-date on the weather in the Golden Horseshoe and Niagara region with a daily detailed analysis on Your Weather First)

LONG RANGE

"Next week will be mostly dry, but we have the threat for showers Tuesday and then a cold front will bring the risk of showers late Wednesday, especially for eastern Ontario and southern Quebec," says The Weather Network's Dr. Doug Gillham. "Temperatures will be near or slightly above seasonal midweek, but a quick shot of cooler weather around Thursday, with the chance of frost developing for Cottage Country and eastern Ontario."

Check back for updates as we continue to monitor the forecast.

PLANNING TO GARDEN THIS WEEKEND? WATCH THIS FOR TIPS ON SHOPPING EFFICIENTLY

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