![\"Future](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/11\/Futurecast-1024x576.png\")
Future weather forecast for GTA and Ontario, Fri. Nov. 28, 2025\nGraphic: CITYNEWS<\/p>\n
Ontario is bracing for a blast of winter weather this week, with forecasters warning of significant snowfall across the north and lake\u2011effect squalls set to hammer southern regions as November draws to a close.<\/p>\n
What to expect in southern Ontario. Will the GTA escape the snow?<\/p>\n
While the system\u2019s core will remain to the north, southern Ontario\u00a0won\u2019t\u00a0escape its reach.\u00a0<\/p>\n
By Thursday,\u00a0a release of\u00a0Arctic air\u00a0will funnel across the Great Lakes Basin, dropping temperatures and fueling\u00a0strong winds\u00a0of 60\u201380\u00a0km\/h. Those gusts are expected to push lake\u2011effect snow squalls into the snowbelts downwind of Lake Huron and Georgian Bay, with forecasters warning that even the Greater Toronto Area (GTA) could see bursts of heavy snow.\u00a0<\/p>\n
Future weather forecast for GTA and Ontario, Fri. Nov. 28, 2025
\nGraphic: CITYNEWS<\/p>\n
Travel\u00a0through the snowbelt regions on Thursday and Friday could be treacherous, with whiteout conditions\u00a0likely during\u00a0squall activity.\u00a0<\/p>\n
![\"Snow](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/11\/Squalls-1024x576.png\")
Snow squalls return starting Thursday
\nGraphic: CITYNEWS<\/p>\n
Toronto\u2019s forecast points to mid-week rain followed by a sharp drop in temperatures.\u00a0This is because the polar vortex is beginning to wobble.\u00a0Think of the polar vortex as a wall of\u00a0strong winds\u00a0that keep the\u00a0cold air\u00a0near the poles. It is\u00a0located\u00a0above both poles around 15-48 km\u00a0above the ground and is nothing new. But when something happens to disrupt this \u201cwind wall,\u201d\u00a0cold air\u00a0sinks southward.\u00a0\u00a0<\/p>\n
![\"Polar](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/11\/PV1-1024x576.png\")
Polar vortex with a strong jet stream explained
\nGraphic: CITYNEWS<\/p>\n
![\"Polar](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/11\/PV2-1024x576.png\")
Polar vortex with a weak jet stream explained
\nGraphic: CITYNEWS<\/p>\n
Good old-fashioned winter weather depends on a weak or disrupted polar vortex. In this case, the disruption will\u00a0mainly be\u00a0due to something called an \u201cSSW\u201d or \u201csudden stratospheric warming\u201d which will weaken the \u201cwind wall\u201d.\u00a0While spills of\u00a0cold air\u00a0at this time of year are not unusual, the \u201cSSW\u201d event that will cause it is early for this time of year, happening only a couple of times this early in the season in the past 70 years.\u00a0\u00a0<\/p>\n
The current La Ni\u00f1a is also playing a role in this shift to\u00a0cold weather. The\u00a0CityNews\u00a0winter outlook released earlier this month\u00a0maintains\u00a0that the first half of winter will be cold across the\u00a0Great\u00a0Lakes, while the second half in early 2026 looks to be milder.\u00a0<\/p>\n
![\"Early](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/11\/EarlyWinterForecast-1024x576.png\")
Early winter forecast in Ontario, Nov 2025 \u2013 Jan 2026
\nGraphic: CITYNEWS<\/p>\n
![\"Late](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/11\/LateWinterForecast-1024x576.png\")
Late winter forecast in Ontario, Jan \u2013 Mar 2026
\nGraphic: CITYNEWS<\/p>\n
Toronto\u2019s short-range forecast <\/p>\n
Monday will be\u00a0mainly sunny, with a high near 9\u00b0C, and temperatures will fall to 4\u00b0C tonight.\u00a0<\/p>\n
On Tuesday, the day will be cloudy with showers\u00a0beginning near the noon hour, reaching a high of 9\u00b0C. Rain is\u00a0likely overnight\u00a0with a low of 7\u00b0C.\u00a0<\/p>\n
Wednesday will remain cloudy with\u00a0on and off\u00a0showers\u00a0through the\u00a0day\u00a0switching to rain\/snow mix by the evening. The high of 11\u00b0C will begin falling during the afternoon as\u00a0strong winds\u00a0pick up. Overnight, there is a 40 per cent chance of flurries or rain showers, with temperatures falling to 0\u00b0C\u00a0and gusty winds continuing. <\/p>\n
Thursday will be cloudy with blowing snow at times for the city. It will also be windy, with a daytime high of 1\u00b0C. Heavy flurries are expected overnight, with a low of \u20132\u00b0C\u00a0and a morning wind chill near \u201310 by\u00a0Saturday\u00a0morning.\u00a0<\/p>\n
What will areas north of the GTA see?<\/p>\n
A developing low\u2011pressure system south of Lake Superior late Tuesday is expected to\u00a0merge with an Alberta clipper triggering widespread snow through Thursday, creating hazardous travel conditions across northern Ontario. Environment Canada has issued winter storm watches for dozens of communities, including Thunder Bay, Timmins, Kapuskasing,\u00a0Marathon\u00a0and Wawa.\u00a0<\/p>\n
![\"Weather](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/11\/WinterStormWatch-1024x576.png\")
Weather watches and warnings, Ontario, Nov 2025
\nGraphic: CITYNEWS<\/p>\n
\u201cStrong northerly winds will also accompany the snow, leading to possible blowing snow that could reduce visibility to near\u00a0zero\u00a0at times,\u201d writes Environment Canada on Monday. \u201cThere\u00a0remains\u00a0uncertainty with the exact track of the low-pressure system, and therefore the corridor of\u00a0heaviest\u00a0snowfall. Total snowfall amounts may exceed\u00a030 cm\u00a0for some locations north of Lake Superior.\u201d\u00a0<\/p>\n
Drivers are being urged to prepare for poor visibility, slick roads, and\u00a0possible closures.\u00a0<\/p>\n