Multi-Day Heat Warning in Effect – July 28, 2025

Environment Canada has issued a multi-day heat warning that’s in effect for our region until Tuesday night, July 29.

This prolonged heat event will see:

• Daytime high temperatures of 30-33 degrees Celsius
• Humidex values of 38-42
• Nighttime low temperatures of 19-21 degrees Celsius, providing little relief from the heat

The hottest conditions are expected today. Daytime high temperatures will lower on Wednesday.

Watch for signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water.

Heat stroke is a medical emergency. Call 911 or your emergency health care provider if you, or someone around you, is showing signs of heat stroke (red and hot skin, dizziness, nausea, confusion, change in consciousness).

Cooling centres

The Municipality of Mississippi Mills has four cooling centres available to those who need it:

• John Levi Community Centre (182 Bridge Street, Almonte)
• Almonte Branch of the Mississippi Mills Public Library (155 High Street, Almonte)
• Stewart Community Centre (112 MacFarlane Street, Pakenham)
• Pakenham Branch of the Mississippi Mills Public Library (128 MacFarlane Street, Pakenham)

The Gemmill Park splash pad (182 Bridge Street, Almonte) is also open daily from approximately 8 a.m. to 9 p.m.

Heat safety tips

• Limit time spent in the sun and heat
• Wear lightweight, light-coloured and loose-fitting clothing
• Plan outdoor activities during the coolest part of the day
• Drink lots of water and often
• Close blinds and shades
• Turn on air conditioning, use fans
• If you don’t have air conditioning, look for a public cooling centre
• Don’t leave anyone, especially kids and pets, inside a hot vehicle

The South East Health Unit has more information on heat safety: https://healthunit.org/health-information/home-health-safety/heat-cold/