Live · updated 1 min ago

Ontario weather alerts

No active Environment and Climate Change Canada alerts anywhere in Ontario right now. Pick a forecast region or city for what is active, what it means, and a year of history.

0 of 61 forecast regions with alerts All forecast regions Get alerts on your phone →

Where the alerts are right now

All clear across Ontario

No warnings, watches or advisories are in effect in any forecast region. See the national map.

Get Ontario alerts on your phone before you think to look them up

Forecast Bar watches the official alert feeds around the clock, NWS in the United States and Environment Canada in Canada, and pushes every warning, watch and advisory for your saved locations the moment it is issued. This page is the same data, a few minutes later.

Push notifications for severe weather, with Critical Alerts that break through Focus modes
Storm Tracker and Live Activities that follow a storm cell on your Lock Screen
Radar with warnings drawn on the map, on iPhone, iPad, Apple Watch, Mac and Apple TV
Rain alerts, air quality, tides, aurora and custom thresholds you set yourself

Download on theApp Store On Mac, included withSetapp

Forecast Bar severe weather alert notifications on an iPhone Lock Screen

Cities

Alerts by city in Ontario

The largest cities. Alerts are issued by forecast region, so a city page shows the alerts for the forecast region it sits in.

Toronto
Toronto0 Ottawa
Ottawa0 Mississauga
Halton - Peel0 Brampton
Halton - Peel0 Hamilton
Hamilton0 London
London - Middlesex0 Markham
York - Durham0 Vaughan
York - Durham0 Kitchener
Waterloo - Wellington0 Windsor
Windsor - Essex - Chatham-Kent0 Oakville
Halton - Peel0 Richmond Hill
York - Durham0 Burlington
Halton - Peel0 Oshawa
York - Durham0 Greater Sudbury
Greater Sudbury and vicinity0 Barrie
Barrie - Orillia - Midland0 Guelph
Waterloo - Wellington0 Whitby
York - Durham0 Cambridge
Waterloo - Wellington0 St. Catharines
Niagara0 Milton
Halton - Peel0 Kingston
Kingston - Prince Edward0 Ajax
York - Durham0 Waterloo
Waterloo - Wellington0 Thunder Bay
Thunder Bay0 Brantford
Oxford - Brant0 Pickering
York - Durham0 Niagara Falls
Niagara0 Newmarket
York - Durham0 Peterborough
Peterborough - Kawartha Lakes0 Sault Ste. Marie
Sault Ste. Marie - Superior East0 Sarnia
Sarnia - Lambton0

Everywhere

All 61 forecast regions in Ontario

Algonquin Atikokan - Upsala - Quetico Attawapiskat Bancroft - Bon Echo Park Barrie - Orillia - Midland Belleville - Quinte - Northumberland Big Trout Lake - Sachigo Lake Brockville - Leeds and Grenville Burk's Falls - Bayfield Inlet Chapleau - Gogama Cornwall - Morrisburg Dryden - Ignace Dufferin - Innisfil Dunnville - Caledonia - Haldimand Elgin Elliot Lake - Ranger Lake Fort Frances - Rainy Lake Fort Hope - Webequie Fort Severn Geraldton - Manitouwadge - Hornepayne Greater Sudbury and vicinity Grey - Bruce Haliburton Halton - Peel Hamilton Huron - Perth Kapuskasing - Hearst Kenora - Nestor Falls Kingston - Prince Edward Kirkland Lake - Temiskaming Shores - Temagami Lake Nipigon - Wabakimi London - Middlesex Manitoulin - Blind River - Killarney Moosonee - Fort Albany Niagara Nipigon - Marathon - Superior North North Bay - West Nipissing Ottawa Oxford - Brant Parry Sound - Muskoka Peawanuck Peterborough - Kawartha Lakes Pickle Lake - Wunnummin Lake Prescott and Russell Red Lake - Ear Falls Renfrew - Pembroke - Barry's Bay Sandy Lake - Pikangikum Sarnia - Lambton Sault Ste. Marie - Superior East Simcoe - Delhi - Norfolk Sioux Lookout - Savant Lake Smiths Falls - Lanark - Sharbot Lake Stirling - Tweed - South Frontenac Superior West Thunder Bay Timmins - Cochrane Toronto Waterloo - Wellington Wawa - White River - Pukaskwa Windsor - Essex - Chatham-Kent York - Durham

Get Ontario alerts the moment they are issued

Forecast Bar delivers National Weather Service alerts for your locations as push notifications on iPhone, iPad, Apple Watch, Mac and Apple TV, with radar, Storm Tracker and Live Activities that follow the storm.

Download on theApp Store For Mac, included withSetapp

Free to download; live weather requires a subscription, and every subscription includes a 7-day free trial for new subscribers. Mac and iOS plans are separate; Apple TV is included with Forecast Bar Gold on iOS.