Heat Alert: Keeping Kids Safe When the Heat Index Hits 90°F and Above
- Dr. Shawna Patch
- Jun 24
- 2 min read
Midwest summers are no joke — between the humidity and rising temperatures, it’s not unusual for the heat index to soar above 90°F, and sometimes well over 100°F. At Preferred Pediatrics, we know how quickly this kind of heat can affect children, and we’re here to help you keep your family safe and cool all summer long.
What’s the Heat Index, and Why Does It Matter?
The heat index is what the temperature feels like when humidity is factored in. In the Kansas City area, our hot and humid climate means a 90°F day can feel like 100°F or more — and that puts added stress on the body, especially for kids.
Children are more sensitive to heat than adults because:
● They don’t sweat as efficiently – Sweating helps cool the body, and kids’ bodies aren’t as good at it yet.
● Their bodies heat up faster – Kids have a higher surface area compared to their body mass, so they absorb heat more quickly.
● They may not recognize overheating – Young children may not realize they’re too hot or thirsty until it’s too late.
● They rely on adults – Kids depend on grown-ups to notice the signs of heat exhaustion and help them stay safe.
Top Tips for Protecting Your Kids in the Heat:
Stay Indoors During Peak Heat – Between 10 a.m. and 4 p.m., limit outdoor activities as much as possible. This is when the sun and heat index are usually at their highest. Plan outdoor fun in the early morning or evening when it’s cooler.
Hydrate, Even If They’re Not Thirsty – Children may sweat more or less in high humidity, making it hard to gauge dehydration. Encourage water breaks every 20–30 minutes, especially during outdoor play or sports.
Dress Smart – Choose light-colored, breathable clothes, and opt for hats and sunglasses for sun protection. Avoid heavy or dark-colored fabrics that trap heat.
Don’t Rely on a Breeze – The wind may feel cooling, but it doesn’t always reduce the actual heat risk. Don’t let a breeze fool you into thinking it’s safe to be outside for long periods.
Know the Signs of Heat Illness – If your child shows any of these symptoms, move them to a cool place, give fluids, and call Preferred Pediatrics or your nearest urgent care: Tiredness or weakness, dizziness or confusion, pale/clammy skin, headache, nausea, or muscle cramps.
Never Leave Kids in Cars – Even on a “mild” 85°F day, car interiors can reach 100°F+ within 10 minutes. On those 90+°F days? It’s dangerous in minutes. Always check the back seat, and never leave children unattended.
