Highest temperatures so far this summer predicted for Friday. Here's how to stay safe

The Hagerstown and Chambersburg areas will experience the highest temperatures so far this summer on Friday, according to National Weather Service meteorologists.

The two cities are predicted to reach a high of 98 degrees on Friday, according to the National Weather Service.

The heat index, or how hot the air feels, will be over 100 degrees Friday. Meteorologist Conner Belak said Hagerstown's heat index could reach 105 degrees, with humidity factored in.

There is a chance of isolated or scattered thunderstorms in the area, Meteorologist Matt Steinbugl said, but the thunderstorms aren't expected to be widespread.

Will there be relief with low temperatures at night?

People in the area won't get a break from the heat either, Belak said. The lows are predicted to be in the mid- to upper-70s unlike the typical 50- and 60-degree lows, he said.

To stay safe during the hot weather, Belak said people in the region should limit their time outdoors. If you need to be outside, he said to drink plenty of water, sports drinks, or any liquid that replenishes electrolytes.

"This is our first true upper 90s for a couple of days. Make sure you're thinking smart … taking breaks," Belak said. "When it's this hot, it can be very strenuous on people."

The meteorologist also recommended checking in on seniors, children and other sensitive individuals.

What about four-legged friends?

To keep pets safe, Washington County advises to never leave them in a car, to avoid hot pavement, shorten walks, supervise any outdoor time, look for signs of heatstroke and regularly groom their coats to remove excess fur.

In extreme heat, the Maryland Department of Health recommends wearing lightweight clothing, staying in air conditioning and avoiding salt tablets if not told to by your doctor.

Will Washington County have cooling centers?

There are no cooling centers currently set up in Washington County. However, Public Relations Director of Washington County Danielle Weaver said the county is prepared to activate them if the need arises.

"During the heatwave it's crucial for Washington County residents to take proactive measures to stay safe and protect their well-being," Weaver said in an email.

Will Franklin County have cooling centers?

Franklin County's eight senior centers serve as cooling centers for older adults, county communications coordinator Sheena Baker said in an email. The Chambersburg, Greencastle and Tuscarora senior centers will be operating for extended hours on Thursday and Friday from 8 a.m. to 7 p.m.