Southern Ontario College, ON Current Weather

Strong thunderstorms sweep across Ontario, risk for flooding, damaging winds

Lone star tick bite leads to life-altering allergy for Canadian woman

PHOTOS: Damage reported in Ontario amid tornado-warned storms

"This is our livelihood"; Ont. resort owners share wildfire story

The Northern Lights may shine over parts of Canada tonight. Will you see them?

Cleaning up after tornado hits central Alberta

Your pet goldfish are causing big problems in Alberta waterways

This familiar but invasive plant can take over in the heat

New CRASH Clock, measuring chance of satellite collisions, is ticking down fast

This tick-borne illness is on the rise in Canada, and it's not Lyme

Google Maps leads Quebec man to 390-million-year-old meteor crater

Naming contest for N.S. firefighting helicopters gets funny suggestions

136°C difference: Amid extreme heat, Earth records its coldest temperature

Fire smart: Three plants to avoid having around your home

As El Niño strengthens, is an ‘Atlantic Niña’ developing?

Dashcam catches towering landslide toppling buildings

Rare meteorite that hit New Jersey home came from a briny alien world

"We were driving through flames to get out": Wildfires ravage NW Ontario

Fire outside Wrigley, N.W.T., moves closer to community

Smoky skies are the new reality in Canada, coming at a cost

Hair suddenly standing straight up? Take cover immediately

Boaters interfere with firefighting efforts near Pemberton

Lake that provides power to millions falls dangerously low

Flames engulf halted Ontario train with workers inside

Poor air quality due to wildfire smoke can pose unique risks to your pet

At what air quality index level should you stay indoors?

Massive asteroid flyby of Earth will be visible to billions of people. Here's when

What happens when Arctic sea ice disappears?

Critical weather satellite returning to duty after major malfunction

Not just air quality, wildfire smoke impacts water, too