Ottawa is in for a wet finish to the weekend, with showers and a risk of thunderstorms expected to roll through the city on Sunday, according to a CTV News forecast.
What to Expect
After what may have been a dry and pleasant Saturday, Ottawans should prepare for a shift in conditions as rain clouds move into the region. Forecasters are flagging the potential for thunderstorms, which can bring sudden downpours, gusty winds, and brief but intense bursts of rain — the kind of weather that can catch outdoor plans off guard if you're not paying attention to the sky.
Why It Matters for Ottawa
Summer thunderstorms are a familiar feature of the Ottawa Valley's weather pattern, often forming as warm, humid air clashes with incoming fronts. For a city that leans heavily on outdoor life in these warmer months — think ByWard Market patios, Rideau Canal pathways, and weekend festivals — a rainy, storm-prone Sunday can mean last-minute changes to plans. Anyone with outdoor gatherings, sports games, or market visits scheduled should keep an eye on the radar and have a backup plan ready.
Thunderstorms can also bring localized flooding risks, particularly in low-lying areas of the city that have seen drainage issues during past heavy rain events. Residents are encouraged to avoid parking under trees or near storm drains if a storm does roll through, and to stay alert for any weather alerts issued by Environment Canada as the day progresses.
Timing and Outlook
While exact timing can shift as the forecast develops, showers are expected to build through the day Sunday, with thunderstorm risk typically highest in the afternoon and early evening hours when heat and humidity peak. As always with summer storm systems, conditions can vary block by block — some neighbourhoods might see a passing shower while others get caught in a heavier downpour.
Planning Around the Weather
For those with outdoor plans this weekend, it's worth checking the latest Environment Canada updates before heading out, especially if you're headed to an event in open spaces like Lansdowne Park or along the Ottawa River pathways. Indoor backup options — from the Canadian Museum of Nature to local cafés and shops — are always a good bet when the skies turn grey.
As the unpredictable nature of Ottawa summers continues, residents are reminded that shifting from sunshine to storms in a matter of hours isn't unusual for the region, and staying weather-aware is the best way to keep weekend plans on track.
Source: CTV News
