Pediatricians at Valley Children's Healthcare say children are particularly vulnerable during periods of extreme heat and are reminding parents to be mindful of how and when kids spend time outdoors.
Doctors say the middle of the day can be especially risky.
"Especially midday when the sun is the highest and it's the hottest. We see a lot of kids come in with signs of dehydration, including kind of chapped lips. They look more tired and they just appear weaker, so if you notice those kinds of symptoms in your child, it'd be best to get them checked," said Dr. Gino Urbano, a pediatric resident at Valley Children's Healthcare.
Health care providers are warning parents to watch for heat-related illnesses such as heat cramps, heat exhaustion and heat stroke. Of the three, heat stroke is the most serious.
"With heat stroke, that's when you want to call 911 right away. That's when you have a really high fever. You feel like your child's not acting like themselves. They have muscle cramps," said Dr. Sanskriti Saxena, a pediatric resident.
Doctors say staying hydrated is one of the most effective ways to prevent heat-related illness. Clothing choices can also make a difference.
"Also wearing really loose-fitted clothes is important and helpful. Lighter colors help reflect sunlight, and so it won't be as warm," Saxena said. "It's important to wear sunscreen as well and reapply sunscreen."
In addition to drinking plenty of water and dressing appropriately, doctors recommend limiting time outdoors during peak heat and finding ways to cool down indoors. Air-conditioned spaces or supervised pool time can help children beat the heat.
"Everyone loves going to the pool in the summer, but we have to make sure that we're safe. If we bring our kids to the pool, make sure they're within eyesight and everyone's watching them at all times," Urbano said.
Health officials say planning ahead and recognizing early warning signs can help families enjoy summer activities while staying safe during periods of extreme heat.