Extreme Heat Alert

June 21, 2025

Environment Canada has issued a heat warning for Renfrew County and District, with dangerously hot and humid conditions expected from Sunday through at least Tuesday. Daytime highs may reach 31–36°C, with humidex values between 40–45. Nighttime temperatures will remain high, offering little relief.

Extreme heat can affect everyone, but certain groups are at higher risk — including older adults, young children, people with health conditions, those without air conditioning, and anyone working or exercising outdoors.

Take precautions to stay cool and prevent heat-related illness.

The following cooling spaces are available in our community:

• Petawawa Public Library
• Petawawa Civic Centre
• Petawawa Point Beach
• Garrison North Side Splash Pad
• Silver Threads Seniors Centre

Renfrew County and District Health Unit recommends taking the following actions to prevent heat related illness:

• Drink plenty of cool liquids, especially water, before feeling thirsty.
• Wear loose-fitting, light-coloured clothing made of breathable fabric.
• Take a cool shower or bath until you feel refreshed.
• Take a break from the heat by spending a few hours in a cool place.
• Avoid sun exposure. Shade yourself by using a wide-brimmed hat or umbrella.
• Do not leave your pets or children in a parked vehicle or in direct sunlight.
• Plan outdoor activities for cooler parts of the day.
• Check in with neighbours and family members who may be at higher risk of heat related illness or who live alone, to ensure they are comfortable and well-hydrated.

Look for these typical signs and symptoms of heat illness:

• Dizziness or fainting
• Nausea or vomiting
• Headache
• Rapid breathing and heartbeat
• Extreme thirst
• Decreased urination with unusually dark yellow urine.

If you experience any of these symptoms during extreme heat, immediately move to a cool place and drink liquids. Water is best. If you don't feel better soon, seek medical help immediately.

For additional tips on how to stay safe and what to do during an extreme heat-related event please visit Emergency Preparedness | Renfrew County and District Health Unit (rcdhu.com). For more information visit www.rcdhu.com or call 613-732-3629 or 1-800-267-1097.