PHILADELPHIA (CBS) -- Sunscreen, sunglasses, and air conditioners will be in high demand on Memorial Day as summer-like temperatures arrive with highs in the 90's and a noticeable increase in humidity under bright, sunny skies. 

Heading to the Poconos? You will enjoy sunny skies and highs between 85-90.

Looking for relief from the heat? Head down the Shore where an ocean breeze will keep temperatures in the upper-70's.

Water temperatures will be on the chilly side at the shore in the mid-60's. There will be 2-inch waves and a moderate risk of rip currents, so use caution when swimming. 

Make sure to re-apply sunscreen often. The UV index will be very high and sunburn can happen in as little as 20 minutes.

The heat will continue in the 90's through mid-week.

Humidity will be on the rise and when the moisture combines with the 90 degree temperatures, it creates a Heat Index near 100 on Tuesday, and could be our first possible heatwave.