Staff Reports | Community Updates
With temperatures climbing into the upper 90s and low 100s across the Valley, Scottsdale officials are reminding residents and visitors that desert heat can quickly become dangerous, especially on exposed hiking trails.
A recent mountain rescue near Tom’s Thumb Trailhead underscores the importance of preparation, hydration and timing when recreating outdoors during warmer months, according to a press release.
Earlier this month, crews from the Scottsdale Fire Department rescued a hiker and dog near Tom’s Thumb Trailhead who were low on water and needed assistance off the trail.
The McDowell Sonoran Preserve and Pinnacle Peak Park offer opportunities for hiking, biking, rock climbing and equestrian use, but desert conditions can become hazardous as temperatures rise.
In 2025, the Scottsdale Fire Department documented 95 heat-related incidents.
Hikers are encouraged to understand their physical limitations, choose routes appropriate for current weather conditions and carry more water than they expect to need.
For those hiking with pets, officials note that dogs are especially vulnerable to heat-related illness because they cannot regulate body temperature as efficiently as humans. Pet owners should bring extra water, avoid hiking during peak heat hours and watch for warning signs such as excessive panting, drooling or lethargy.
“Preparation saves lives. Whether you’re a first-time visitor or a seasoned desert hiker, heat impacts everyone,” said McDowell Sonoran Preserve Director Jenna Kohl. “We want people to enjoy these incredible protected lands, but we need them to do it safely.”
Residents and visitors are encouraged to familiarize themselves with the signs of heat exhaustion and heat stroke before heading outdoors.
Signs of heat exhaustion include:
Feeling faint or dizzy
Excessive sweating
Clammy skin
Nausea or vomiting
Rapid, weak pulse
Muscle cramps
Signs of heat stroke include:
Throbbing headache
Red, hot, dry skin
Lack of sweating
Nausea or vomiting
Rapid, strong pulse
Loss of consciousness
Ms. Kohl recommends hiking during cooler morning hours and finishing outdoor activity by 10 a.m. Hikers should continue hydrating and consider turning around once half of their water supply has been consumed.
Additional recommendations include:
Wear lightweight, sun-protective clothing
Choose shorter routes during warmer weather
Tell someone where you are hiking
Carry electrolytes, navigation tools, a charged phone and a basic first aid kit
Avoid bringing pets during elevated temperatures
In the event of an emergency, residents and visitors should call 911 immediately.
