{"id":169575,"date":"2026-08-15T23:20:21","date_gmt":"2026-08-15T23:20:21","guid":{"rendered":"https:\/\/www.europesays.com\/canada\/169575\/"},"modified":"2026-08-15T23:20:21","modified_gmt":"2026-08-15T23:20:21","slug":"30-50mm-soaking-sunday-rains-with-storm-risk-in-southern-ontario","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/canada\/169575\/","title":{"rendered":"30-50+mm: Soaking Sunday rains with storm risk in southern Ontario"},"content":{"rendered":"

An active, muggy pattern<\/a> parked over the eastern half of North America won\u2019t spare southern Ontario\u2019s weekend plans.<\/p>\n

The setup looks favourable for a washout on Sunday as the risk grows for very heavy rainfall, with 30-50+mm possible across parts of the region. There could also be severe storms in some locales.<\/p>\n

\"Ontario<\/p>\n

DON\u2019T MISS: Latest El Ni\u00f1o forecast calls for historic heat by this autumn<\/a><\/p>\n

Sunday downpour risk is building<\/p>\n

A vast reservoir of rich atmospheric moisture moving toward southern Ontario will send feels-like values close to 40 and fuel a threat for torrential downpours<\/a> for Sunday.<\/p>\n

\"Ontario<\/p>\n

We\u2019ll see a warm front track into southwestern Ontario on Sunday morning, dragging a slug of very heavy rainfall across the international border.<\/p>\n

Rain will intensify through the early afternoon over Windsor, Sarnia, and the Lake Huron shores as a centre of low pressure approaches the region.<\/p>\n

Expect very heavy to torrential rains to lift into London, Hamilton, the Greater Toronto Area, and the Niagara region by the afternoon and linger through the early evening.<\/p>\n

\"Ontario<\/p>\n

Some uncertainty remains in the precise track of the low-pressure system, which will determine exactly where and how much heavy rain falls.<\/p>\n

30-50+ mm of rain is possible beneath embedded thunderstorms.<\/p>\n

Folks in northeastern Ontario won\u2019t be left out by this pattern, either, as a secondary low-pressure system will bring heavy rainfall to this region to close out the weekend.<\/p>\n

\"Ontario<\/p>\n

Stay with The Weather Network for all the latest on conditions across Ontario.<\/p>\n

WATCH: What can we expect through the remainder of August?<\/p>\n","protected":false},"excerpt":{"rendered":"An active, muggy pattern parked over the eastern half of North America won\u2019t spare southern Ontario\u2019s weekend plans.…\n","protected":false},"author":2,"featured_media":169576,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[17,94,58,865,3664],"class_list":["post-169575","post","type-post","status-publish","format-standard","has-post-thumbnail","category-canada","tag-canada","tag-ontario","tag-rain","tag-southern-ontario","tag-thunderstorm"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/posts\/169575","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/comments?post=169575"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/posts\/169575\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/media\/169576"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/media?parent=169575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/categories?post=169575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/tags?post=169575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}