Heat and Humidity on the Rise: How to stay safe during the heatwave

SOUTH BEND, Ind. -- Summer officially begins today—and it’s arriving with a blast of heat. Temperatures are rising, humidity is climbing, and that combination will push heat index values into the triple digits this weekend.

The heat index is what it feels like when humidity is factored in. So even if the thermometer reads in the 90s, it could feel like 100 degrees or more—and those conditions may linger into early next week.

The heat index is expected to top 100 degrees this weekend and the extreme heat could stick around early next week. That kind of heat isn't just uncomfortable; it can be dangerous.

Dr. Emma Dunfee, a family medicine physician at the South Bend Clinic, says the real concern isn’t just about the temperature, but how the body handles it. High humidity makes it harder for sweat to evaporate, which means it’s harder for the body to cool itself.

To stay safe, Dr. Dunfee recommends staying well hydrated, wearing light clothing, and avoiding outdoor activity during peak heat hours. If you start feeling sick, she says take small sips of water and move to a cooler place.

Heat-related illnesses range from cramps and exhaustion to life-threatening heat stroke. Warning signs include dizziness, nausea, confusion, and hot, dry skin. If someone shows signs of heat stroke, call 911 right away.

If you haven’t already, make sure your air conditioning is working. Drink plenty of water, wear light clothing, avoid peak heat hours, and watch for symptoms.