As another stretch of intense summer weather settles over Colorado, Boulder residents are being urged to take extra precautions as dangerous heat arrives across the Front Range. The National Weather Service has issued a Heat Advisory for portions of the region, with temperatures expected to climb into the upper 90s and, in some locations, approach 100 degrees. Warm overnight temperatures near or above 70 degrees will offer little relief, increasing the risk of heat-related illnesses.

While Boulder is no stranger to warm summer afternoons, extended periods of heat combined with warm nights can place added stress on the body. Seniors, young children, outdoor workers, athletes, people with chronic medical conditions, and pets face the greatest risk. Fortunately, a few simple adjustments can help everyone enjoy the weekend safely while continuing to embrace Boulder’s active outdoor lifestyle.

Stay Ahead of the Heat

The most effective way to protect yourself is to stay hydrated before you begin feeling thirsty. Water should be your drink of choice throughout the day, particularly if you’re spending time outside. If you’re exercising or working outdoors for extended periods, consider beverages that replenish electrolytes as well.

Try to limit alcohol, excessive caffeine, and sugary drinks, all of which can contribute to dehydration. One easy way to gauge hydration is by checking the color of your urine—it should remain light yellow or nearly clear.

Water-rich foods also make a noticeable difference. Boulder farmers markets and grocery stores are full of refreshing seasonal favorites including watermelon, cantaloupe, cucumbers, berries, peaches, leafy salads, smoothies, and fresh vegetables that naturally help replenish fluids.

Keep Your Home Cool

Homes without central air conditioning can warm quickly during prolonged heat. Close blinds and curtains during the afternoon, especially on windows facing west or south. Running fans early in the morning while outdoor temperatures are still cool can help circulate fresh air before closing the house for the day.

If your home becomes uncomfortably warm, spend several hours in an air-conditioned public building. Boulder offers several comfortable options, including public libraries, recreation centers, shopping centers, coffee shops, and other indoor public spaces.

A cool shower, placing a damp towel around your neck, or resting your feet in cool water can also lower body temperature surprisingly quickly.

Adjust Outdoor Activities

Boulder’s hiking trails, bike paths, and open spaces remain inviting, but timing becomes critical during a heat advisory.

Early morning remains the safest and most enjoyable time to hike, run, cycle, or walk. Evening outings after sunset also provide more comfortable conditions once temperatures begin to fall.

If you’re heading into the foothills:

• Carry more water than you think you’ll need.
• Wear lightweight, light-colored clothing.
• Apply sunscreen regularly.
• Take frequent breaks in shaded areas.
• Choose trails with tree cover whenever possible.

If you begin feeling dizzy, nauseated, unusually tired, or confused, stop immediately, move into shade or air conditioning, drink fluids, and seek medical attention if symptoms worsen. Heat stroke is a medical emergency that requires calling 911 immediately.

Don’t Forget Your Pets

Dogs love Boulder adventures just as much as their owners, but summer heat can become dangerous very quickly.

Hot sidewalks and asphalt can burn paw pads in seconds. Before heading out, place the back of your hand on the pavement for several seconds. If it’s too hot for your hand, it’s too hot for your dog’s paws.

Photo credit: Sherrie Stille

Schedule walks during the early morning or evening hours whenever possible. Always carry extra water for both you and your pet, and never leave an animal inside a parked vehicle—even with windows cracked.

If your dog enjoys swimming, cooler water can provide welcome relief, but always supervise pets around lakes and streams and pay attention to local conditions.

Check on Friends and Neighbors

One of Boulder’s greatest strengths has always been its community spirit.

Heat waves can be especially challenging for older adults, people living alone, and anyone without reliable air conditioning. A quick phone call, text message, or visit to check on a neighbor can make a meaningful difference.

Even small gestures—dropping off a cold bottle of water, offering transportation to a cool public space, or simply asking if someone needs anything—help keep our community safe during extreme weather.

Simple Heat Safety Reminders

Keep these tips in mind throughout the weekend:

• Drink water consistently throughout the day.
• Wear loose, breathable clothing.
• Avoid strenuous outdoor activity during the hottest afternoon hours.
• Never leave children or pets inside parked vehicles.
• Take frequent breaks if working outdoors.
• Know the warning signs of heat exhaustion and heat stroke.
• Monitor the latest local weather forecasts before making outdoor plans.

Enjoy Boulder Responsibly

Summer remains one of the best times to experience everything Boulder has to offer. Early morning hikes, shaded creek paths, outdoor breakfasts, farmers markets, evening patio dinners, and peaceful sunset walks all provide excellent ways to enjoy the season while avoiding the worst of the afternoon heat.

With a little planning and awareness, Boulder residents can continue enjoying the outdoors safely while looking out for friends, neighbors, and pets along the way.

Stay hydrated, stay cool, and remember that a little preparation goes a long way during Colorado’s hottest days.

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