It's summertime in Charlotte. We know it's going to be hot. But maybe not this hot.

The WCNC Charlotte Weather Team is forecasting afternoon high temperatures in the mid-to-upper 90s this week in the Charlotte metro. Heat indeces are forecasted to top out around 100 degrees or higher.

Editor's note: The hottest and most humid day this week appears to be Wednesday, so be mindful if you have outdoor plans.

What's a heat index? A heat index is what the temperature feels like to your body. It's a calculation of the actual air temperature combined with humidity.

According to the Journal of the American Medical Association, when the air temperature is 86 degrees, the asphalt temperature registers 135 degrees. If it's too hot for your hand, it's too hot for your dog's paws. | Photo by CLTtoday

Extreme heat is not only unpleasant, it can also be dangerous.

Why is heat so dangerous? In extreme heat, the human body struggles to cool itself off.

Pro tip: Heat stroke is the most serious heat-related illness and happens when the body loses its ability to sweat. The skin gets hot and red, and the pulse quickens as the person's body temperature climbs to 103 degrees or higher. Headaches set in, along with nausea, confusion and even fainting.

In case of heat stroke, experts suggest calling 911 and trying to lower the person's body temperature with cool, wet cloths or a cool bath.

The National Weather Service has provided an online safety guide for intense heat — emphasizing children and older adults are especially vulnerable to dangerous temperatures.

Ramsey Creek Beach is a waterfront beach with a swimming area at Ramsey Creek Park. | Photo via Mecklenburg County

Ways to beat the heat:

Limiting time outside
Staying hydrated
Seeking shade
Cooling off in water (check out our guide on swimming spots around town)
Using sunscreen
Follow your local meteorologists for heat-related updates

The American Red Cross prepared an extreme heat preparedness checklist — including important tips to stay hydrated.

Editor's note: An average person needs to drink 3/4 of a gallon of water daily.