Ottawa facing week-long stretch of 30 C heat

Swimmers at Britannia Beach on a hot summer day in Ottawa on Sunday, July 6, 2025. (Josh Marano/CTV News Ottawa)

Ottawa is set to experience a lengthy run of hot and sunny weather.

According to Environment Canada’s weather forecast, the capital is about to experience a prolonged stretch of 30 C-plus weather beginning Sunday and lasting through the week.

On Sunday, expect clear skies and temperature reaching 30 C. The humidex will reach 32 and the overnight low will be 15 C.

• Hourly and 7-day forecast on our CTVNewsOttawa.ca weather hub

On Monday, expect another sunny day with a high of 30 C.

Tuesday’s forecasts predict a high of 31 C with a chance of showers.

Wednesday is expected to kick off a three-day stretch of 34 C weather.

For guidance on dealing with extreme heat and for a list of places to cool off in Ottawa, visit Ottawa Public Health’s website.

• How to deal with heat exhaustion and heat stroke
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