Red Cross urges heat safety as dangerous temperatures expected through Fourth of July weekend
The American Red Cross is urging residents to take precautions as dangerous heat and high humidity are expected to affect millions of people from the Midwest to the East Coast through the Fourth of July holiday weekend.
Forecasters expect temperatures to reach the 90s to low 100s, with heat index values between 105 and 110 degrees. Overnight temperatures are expected to remain in the 70s, providing little relief from the prolonged heat.
The Red Cross noted that extreme heat is the leading cause of weather-related deaths in the United States and warned that the combination of high temperatures and humidity increases the risk of heat-related illness.
Officials said the timing is especially challenging as the 2026 FIFA World Cup continues, bringing large crowds to many major U.S. cities.
The Red Cross recommends three key steps during extreme heat: stay hydrated, stay cool and stay connected.
People are encouraged to drink a cup of water every 20 minutes, even if they are not thirsty, while avoiding sugary, caffeinated and alcoholic beverages. Spending time in air-conditioned buildings, such as shopping malls, libraries or designated cooling centers, can help reduce the risk of heat illness.
Residents are also encouraged to check on family members, neighbors and friends, especially older adults, young children, pregnant women, people with chronic medical conditions or disabilities, outdoor workers and athletes, who are at greater risk during extreme heat.
The organization also reminded pet owners to ensure animals have access to fresh water and shade.
The Red Cross said people should know the signs of heat-related illnesses.
Heat cramps may cause heavy sweating and muscle pain. Heat exhaustion can include heavy sweating, weakness, dizziness, nausea, vomiting and cool, clammy skin. Heat stroke, a life-threatening emergency, may cause a high body temperature, rapid heartbeat, confusion, headache, dizziness or unconsciousness.
Anyone experiencing symptoms of heat stroke should be moved to a cool location immediately while someone calls 911. Cooling the person’s body with wet cloths or a cool bath can help until emergency responders arrive.
The Red Cross also recommends ensuring air conditioning is working properly, making plans for where to go if the power goes out, keeping medications at safe temperatures and signing up for local emergency alerts.
Residents can find nearby cooling centers or shelters by visiting redcross.org, using the free Red Cross Emergency app or calling 1-800-RED CROSS (800-733-2767).
