Toronto Braces for Wet Weekend with Rain, Thunderstorms and Fog

Toronto residents are preparing for a soggy start to the weekend as a series of showers and thunderstorms are expected to move through the region. Environment Canada has issued both a special weather statement and a fog advisory for the city and surrounding areas.

Special Weather Statement: Rainfall and Snowmelt

A special weather statement issued on Friday, March 6, 2026, warns of rainfall amounts of 15 to 25 mm expected through Saturday evening, with locally higher amounts possible due to thunderstorms. Environment Canada notes that the rain, combined with mild temperatures, will likely melt much of the existing snowpack, leading to additional runoff and potential ponding on roads and in low-lying areas. The frozen ground currently has a limited capacity to absorb the increased water volume.

Areas in Northern York Region are under a rainfall warning, anticipating rainfall amounts of 15 to 40 mm.

Fog Advisory: Hazardous Travel Conditions

In addition to the rainfall, a yellow advisory for fog is in effect as of 1:55 AM EST Saturday, March 7, 2026. Environment Canada warns of near-zero visibility conditions due to locally dense fog expected to develop this evening and persist overnight. Travel is expected to be hazardous, with visibility potentially reduced suddenly. The fog is anticipated to dissipate overnight or early Saturday morning as winds shift to a southwesterly direction.

Forecast Details

The daytime high on Saturday is forecast to reach 15°C. Sunny conditions are expected on Sunday, with a high of 10°C.

Reporting Severe Weather

To report severe weather, residents can send an email to ONstorm@ec.gc.ca or post reports on X using the hashtag #ONStorm.

Key Takeaways

• Expect several rounds of showers and isolated thunderstorms through Saturday evening.
• Rainfall amounts of 15-25 mm are likely, with higher amounts possible in some areas.
• Snowmelt will contribute to runoff and potential ponding.
• Dense fog is expected tonight, creating hazardous travel conditions.