Frost advisories issued for parts of Greater Toronto Area and Southern Ontario

1 hour ago 6

Temperatures from London to Guelph expected to drop to –3C or –4C early Tuesday

Published May 11, 2026 • Last updated 3 minutes ago • 1 minute read

Icicles are pictured in this file photo.

A frost advisory was issued on Monday for parts of the Greater Toronto Area and a large swath of Southern Ontario.

Advertisement 2

THIS CONTENT IS RESERVED FOR SUBSCRIBERS ONLY

Subscribe now to read the latest news in your city and across Canada.

Unlimited online access to articles from across Canada with one account.
Get exclusive access to the Toronto Sun ePaper, an electronic replica of the print edition that you can share, download and comment on.
Enjoy insights and behind-the-scenes analysis from our award-winning journalists.
Support local journalists and the next generation of journalists.
Daily puzzles including the New York Times Crossword.

SUBSCRIBE TO UNLOCK MORE ARTICLES

Subscribe now to read the latest news in your city and across Canada.

Unlimited online access to articles from across Canada with one account.
Get exclusive access to the Toronto Sun ePaper, an electronic replica of the print edition that you can share, download and comment on.
Enjoy insights and behind-the-scenes analysis from our award-winning journalists.
Support local journalists and the next generation of journalists.
Daily puzzles including the New York Times Crossword.

Create an account or sign in to continue with your reading experience.

Access articles from across Canada with one account.
Share your thoughts and join the conversation in the comments.
Enjoy additional articles per month.
Get email updates from your favourite authors.

THIS ARTICLE IS FREE TO READ REGISTER TO UNLOCK.

Create an account or sign in to continue with your reading experience.

Access articles from across Canada with one account
Share your thoughts and join the conversation in the comments
Enjoy additional articles per month
Get email updates from your favourite authors

Article content

“Patchy frost is expected overnight and into early Tuesday morning,” Environment Canada and Climate Change Canada said in an alert covering Markham, Vaughan, Richmond Hill, Caledon, Pickering, Oshawa and Uxbridge in the GTA.

Article content

Toronto, Burlington and Oakville were not included in the frost advisory.

Parts of Southwestern Ontario, including Hamilton, Waterloo, Guelph, Kitchener, and London, are also covered by a frost advisory.

Brace for a chilly evening

From London to Guelph, the thermometer could drop as low as –3C or –4C during early Tuesday morning, according to The Weather Network, calling it “an exceptional chill for this time of year.”

The weather agency warned that damage to plants, trees, and crops is possible, advising residents in frost-prone areas to cover up plants.

Temperatures in the GTA “will get dangerously close to the freezing mark,” The Weather Network said, with its forecast showing the thermometer dropping to 2C overnight and 4C Tuesday morning.

*** Disclaimer: This Article is auto-aggregated by a Rss Api Program and has not been created or edited by Bdtype.

(Note: This is an unedited and auto-generated story from Syndicated News Rss Api. News.bdtype.com Staff may not have modified or edited the content body.

Please visit the Source Website that deserves the credit and responsibility for creating this content.)

Watch Live | Source Article