Thinking about going on a hike? Consider the excessive heat warning

SAN DIEGO (FOX 5/KUSI) -- The heat is on and San Diegans are reacting to above normal temperatures.

A lot of people were seen getting an early start Wednesday morning before the peak of the heat.

The National Weather Service has issued an Excessive Heat Warning for the inland valleys, mountains and desert areas. The heat will be considered dangerous Wednesday through Friday.

Cal Fire San Diego reported the rescue of five hikers Monday from Three Sisters Falls.

On Tuesday, a 42-year-old man died after falling from a popular trail below the Torrey Pines Gliderport.

FOX 5 spoke with avid hikers like Eldora Williams, who explained how she prepares for a hike and what she does at home to stay cool. She was out on the path at Mission Trails Regional Park.

"I think they should wear hats and have water. I walk about two hours a day. Today [Wednesday], I’m not gonna go far. You have to have common sense," said Williams.

As far as keeping cool at home, she said she runs her air conditioner and a fan in every room.

“ You know, I have to stay cool -- I’m old," Williams laughed.

If you do have an AC unit, SDG&E says the best thing to do is to start cooling your home at 2 p.m. and then keep the temperature consistent at 78 degrees. Experts say this will help keep the electricity bill down. This is especially true for Wednesday.

You may also want to check on your neighbors and the elderly. There are also "Cool Zones" open across the county.

Stay safe, San Diegans.