Hot Days Ahead - Stay Cool, Stay Safe

Hot Days Ahead - Stay Cool, Stay Safe

Published on June 16, 2026

Over the next couple of days, daytime high temperatures will reach the mid-nineties for the first time this year. The Denver Department of Public Health & Environment (DDPHE) urges all residents to take necessary precautions to stay safe as the temperature rises.

High temperatures can cause illness, as excessive heat can increase your body's core temperature. A heat illness happens when your body is unable to dissipate heat effectively. Personal factors, like age, obesity, dehydration, heart disease, poor circulation, sunburn, and prescription drug and alcohol use can all play a role in your body's ability to cool off during hot weather. Heat illness, including heat stroke, can be dangerous and even fatal if not treated appropriately. Symptoms of heat-related illness can include red or itchy skin, muscle pain or cramps, shallow breathing, elevated body temperature, a weak but quick pulse, nausea or vomiting and diarrhea, dizziness or fainting.

DDPHE offers these tips to prevent heat-related illness:

• Stay inside in air-conditioned buildings as much as possible. Air conditioning is the number one way to protect yourself against heat-related illness. If your home is not air-conditioned, visit a public space with air conditioning
• Drink more water than usual and don't wait until you're thirsty to drink
• Fans will not prevent heat-related illness in extreme heat, instead take cool showers or baths to cool down
• Don't use the stove or oven to cook-it will make you and your house hotter
• Don't drink alcohol or beverages that contain caffeine
• Limit your outdoor activity, especially during the middle of the day when the sun is hottest
• If you must be outside during the heat of the day, follow these tips:
• Wear and frequently reapply sunscreen
• Pace your activity and rest often
• Pay attention to muscle cramping, which may be an early sign of heat-related illness. To combat cramping and heat-related illnesses, drink more water than usual
• Wear loose, lightweight, light-colored clothing and a hat

Priority populations

Some populations are more vulnerable to heat-related illness and may need additional support during extreme heat events. These include:

• Older adults (particularly those aged 65 and older)
• Children under the age of 2
• People experiencing homelessness
• People with chronic medical conditions (e.g., cardiovascular disease, diabetes, mental illness)
• People with disabilities
• Pregnant individuals
• People who may lack access to air conditioning or safe cooling spaces

During periods of high heat, check on friends and neighbors to be sure they are safe and remember to never leave children unattended in a hot car.

Keep animals safe from the heat

Denver Animal Protection (DAP) reminds residents to never leave their pets alone in vehicles.

If you suspect an animal is suffering heatstroke:

• Move the animal to shade or a cooler area
• Cool the pet down with water or ice packs on the stomach only
• Offer cool drinking water, but do not force-feed it
• Don't dunk the pet in water. This can hurt them even more when their temperature regulation is impaired.
• Don't cover, crate, or confine the animal
• Even if your pet responds to cooling treatments, it's critical that your pet sees an emergency veterinarian to see if it has suffered irreversible damage

If you see a dog in a hot car, immediately call 311 or Denver Animal Protection, 720-913-2080. You should also familiarize yourself with the city's Good Samaritan law which provides legal immunity to people who break a car window to save an animal. However, to ensure immunity:

• You must believe the animal is in imminent danger of death or serious bodily injury
• The vehicle must be locked
• You must make a 'reasonable effort' to find the vehicle's owner
• You must contact the Denver Police Department, Denver Fire or DAP before entering the vehicle
• You cannot use more force than necessary to free the animal
• If you break a window, you must remain with the animal and on scene until police or DAP officers arrive

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