South Florida Heat Advisory: Dangerous Heat Continues August 10
August 10, 2026 — Dangerous summer heat is affecting large portions of South Florida, prompting Heat Advisories across multiple counties. Residents and visitors should prepare for hot temperatures combined with high humidity that can make outdoor conditions especially difficult.
The advisories cover portions of Martin, Okeechobee, Broward, Miami-Dade, Palm Beach and Collier counties, including coastal, inland and metropolitan areas.
Heat Advisory Areas
The Heat Advisory includes the following areas:
Martin and Okeechobee Counties
- Coastal Martin County
- Inland Martin County
- Okeechobee County
Broward, Miami-Dade and Palm Beach Counties
- Coastal Broward County
- Coastal Miami-Dade County
- Coastal Palm Beach County
- Far South Miami-Dade County
- Inland Broward County
- Inland Miami-Dade County
- Inland Palm Beach County
- Metro Broward County
- Metro Palm Beach County
- Metropolitan Miami-Dade County
Collier County
- Coastal Collier County
- Inland Collier County
Why South Florida Heat Can Become Dangerous
High temperatures are only part of the concern. High humidity prevents sweat from evaporating efficiently, making it harder for the body to cool itself.
As a result, conditions can feel significantly hotter than the actual air temperature.
Furthermore, prolonged exposure to these conditions can increase the risk of heat exhaustion and potentially life-threatening heat stroke.
Who Is Most Vulnerable?
Anyone spending extended time outdoors can be affected. However, extra caution is recommended for:
- Older adults
- Young children
- People working outdoors
- Athletes and outdoor recreation enthusiasts
- People without reliable access to air conditioning
- Anyone spending extended periods in direct sunlight
Pets can also be vulnerable to excessive heat, so provide them with plenty of water and a cool, shaded place to rest.
Heat Safety Tips
During the advisory, try to limit strenuous outdoor activity during the hottest part of the day.
Drink plenty of water, take frequent breaks in air-conditioned or shaded locations, and wear lightweight, loose-fitting clothing. Never leave children, pets or vulnerable individuals unattended inside a parked vehicle.
If you must work or exercise outdoors, take regular cooling breaks and stay hydrated.
Know the Warning Signs
Watch for symptoms of heat-related illness, including:
- Heavy sweating
- Headache
- Dizziness
- Weakness or unusual fatigue
- Nausea
- Muscle cramps
- Confusion
- Fainting
Heat stroke is a medical emergency. If someone develops severe symptoms such as confusion, loss of consciousness or a dangerously elevated body temperature, seek emergency medical assistance immediately and begin cooling the person while help is on the way.
Stay Weather Aware Across South Florida
The combination of intense summer heat and humidity can make conditions hazardous even when skies are mostly sunny. Conditions can also vary between coastal, inland and metropolitan areas.
Keep checking the latest local weather information throughout the day, especially if you have outdoor plans.
Radar Watch HQ will continue monitoring heat threats and significant weather conditions across Florida and the United States. Stay cool, stay hydrated and stay weather aware.
Radar Watch HQ Top 5 Essentials for Extreme Heat
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When an Extreme Heat Watch or Heat Advisory is in effect, having the right gear can help you stay safer and more comfortable.
A compact, battery-powered fan provides cooling while traveling, working outdoors, waiting at events, or during power outages.
2. Insulated Water Bottle or Tumbler
A high-quality insulated bottle or cup keeps water cold for hours, making it easier to stay hydrated throughout the day.
A handheld misting fan or spray bottle delivers instant cooling by combining fine water mist with airflow.
Portable air conditioners, evaporative coolers (where appropriate), or high-performance tower fans can help reduce indoor temperatures during dangerous heat.
5. Electrolyte Hydration Packets or Drinks
Electrolyte supplements help replace minerals lost through heavy sweating and support hydration during prolonged heat exposure.
