MIDWEST — The National Weather Service issued extreme heat warnings and advisories for large areas of the Midwest and Eastern U.S. on July 2, 2026. Public health officials in Indiana urged residents to take precautions and use cooling centers as the region experienced heat index values in the 100s.

Indiana is under an extreme heat warning through Friday. The Marion County Health Department recommended staying in air-conditioned spaces as much as possible and drinking plenty of fluids. The American Red Cross and Indiana 211 advised residents to check on neighbors.

Janie Bohlmann, regional communications manager for the Indiana Region American Red Cross, emphasized the importance of checking on others. "It's definitely really important that you're checking in with them regularly, making sure that they have plenty of water, that they have good air conditioning in their homes — that can really help them stay safe," Bohlmann said.

Indiana 211 reported 367 cooling center locations across all 92 counties. These centers, which include libraries, fire stations, churches, and community centers, provide access to food, water, air conditioning, and fans. Residents can find a nearby cooling center by calling 2-1-1 or 1-866-211-9966.

Symptoms of heat illness can include muscle cramps, headache, fatigue, nausea, vomiting, a rapid weak pulse, excessive sweating, cool pale and clammy skin, or feeling faint or dizzy. Heat exhaustion warning signs include fatigue, extreme thirst, nausea, headache, shortness of breath, rapid breathing, muscle cramping, and feeling dizzy or lightheaded. Heatstroke may involve a body temperature exceeding 103 degrees F, a strong, rapid heartbeat, confusion, vomiting, seizures, slurred speech, or passing out, in addition to heat exhaustion signs. If symptoms suggest heatstroke, medical attention is needed immediately.

To cool an overheated individual, remove them from the sun and provide rest. Steps include moving them to air conditioning or shade with a fan, misting them with water, or pouring water over their head. The head and face, armpits, and groin are primary areas to cool. If muscle cramps and heat exhaustion do not improve within one hour of recovery, medical attention is necessary. Residents should call 911 if someone loses consciousness.

Certain groups face higher risks for heat-related illness, including infants, small children, people aged 60 and older, pregnant women, outdoor workers, and those without access to air conditioning. Individuals who are overweight and those with underlying health conditions also face increased risk. Temperatures inside parked vehicles can become life-threatening rapidly, and children or pets should never be left in parked cars.

Officials recommend limiting time outdoors during the hottest parts of the day and taking frequent breaks in the shade. Sunscreen with at least SPF 15 should be applied 30 minutes before going out and reapplied every couple of hours. Loose-fitting, lightweight clothing such as cotton or linen, a wide-brim hat, and sunglasses are suggested. Smaller children should be protected with a stroller canopy or umbrella.

Drinking water in slow sips throughout the day is important, though individuals on fluid restrictions should consult a doctor. Sugary beverages, caffeine, and alcohol can act as diuretics and impair the body's ability to cool itself. Electrolyte replacement should be considered for children, seniors, athletes, outdoor workers, and those who are sweating excessively. Eating light foods like fruits and salads is also advised. People should not exercise alone or allow children to play unattended outdoors in high temperatures and humidity.