Weather system moving through Mississauga brings heavy rain

Heavy rainfall is expected in Mississauga until Thursday.

Water levels in local waterways, including creeks, rivers, ponds and lakes remain high, increasing the risk of additional flooding. Recent rainfall has saturated the ground, limiting its ability to absorb more moisture. As a result, heavy rain may lead to flooding, fast‑moving water, and slippery banks and shorelines. For safety, residents are urged to avoid rivers, creeks, stormwater ponds and Lake Ontario.

Short periods of intense rainfall can also overwhelm storm drains, leading to rapid water pooling on roads and in low‑lying areas.

Current park flooding in Mississauga

Culham Trail (Ward 6)

A section of Culham Trail (Ward 6) that runs behind River Grove Community Centre to Bristol Rd. is closed to the public until further notice.

Flooding on the Culham Trail – April 15, 2026

Location of flooding at Culham Trail – April 15, 2026

Reminders

Residents are reminded to please clear storm drains near driveways and in backyards of leaves and debris to reduce the risk of flooding. Residents are also encouraged to prepare in advance and take extra care when travelling.

Drivers are reminded to slow down on roadways, maintain a safe distance, leave extra time for travel and drive according to weather conditions. Refrain from driving through flooded roadways. If there is pooling water on a roadway, which make lanes impassable, avoid driving through it. Divert, turn back and find another route.

Avoid low-lying areas. Watch for washouts near rivers, creeks and culverts.

City response

The City is monitoring local waterways and low‑lying areas in co-ordination with conservation authorities as part of the Credit Valley Conservation (CVC) Flood Watch.

City crews are actively monitoring and maintaining storm drains (catch basins) on city roads to watch for water ponding and flooding. Report a problem with a storm drains on the road online or by calling 311 (905-615-4311 outside City limits).

What is a flood watch or warning?

• Flood watch: Flooding may happen in certain areas.
• Flood warning: Flooding is happening or will happen soon.

Conservation Authorities, like CVC, issue these watches and warnings when conditions like heavy rain, melting snow or ice buildup could lead to rising water levels.

If a flood warning has been issued, act immediately to protect yourself from danger and your home from flood damage.

Higher flood risk in spring

Spring brings a mix of rapid snowmelt, heavy rain and breaking ice, leading to a higher flood risk. These can all cause water to build up faster than the ground and drainage systems can handle.

For any questions or concerns about flooding, please contact 311.

Please continue to monitor the City of Mississauga Newsroom for updates. Please follow @citymississauga, @saugaparksrec, @CVC_CA and @TRCA_HQ, on X.

Check the weather on the Weather Network, Credit Valley Conservation or the WeatherCAN app from Environment Canada for details on weather conditions.

Stay prepared

Keeping a close eye on changing weather conditions, preparing your family and maintaining your home can make a big difference. A little preparation now can help protect both your loved ones and your property as temperatures rise.

Learn more about flooding in Mississauga.

Tags

• Emergency and Preparedness
• Public Safety
• Weather Conditions and Warnings