Saturday will likely be the start of the the Seacoast's first heat wave of the season as temperatures soar towards 90.

The high heat and sunshine will likely be here through at least Tuesday with even the immediate shore line getting into the 90s, according to National Weather Service meteorologist Chris Kimble. A heat wave is considered to be in effect when temperatures reach at least 90 degrees for three days in a row.

"Saturday is our first of the hot days with a high around 90 but it's a little cooler at the beaches but not by a lot,"Kimble said.

It's a stark contrast to the Memorial Day weekend which was cold and rainy with temperatures stuck in the 40s and 50s.

The  weekend forecast for the Seacoast according to Kimble:

  • Saturday: Sunny with a high around 90
  • Sunday: Sunny and a little warmer in the low 90s but a little cooler at the beaches
  • Monday: Sunny in the mid 90s even at the beaches

The threat of thunderstorms is minimal until a cold front comes through but Kimble isn't sure when that will be.The severity of the storms depends on the time of day the front arrives.

"It could be as early as Tuesday but more likely it's going to be Wednesday. When that comes through it will cool things off a lot. Until then we're stuck in this really hot air mass. Tuesday we're looking at really hot weather in the low to mid 90s," Kimble said.

The NHTSA reminded drivers to check the back seat and lock doors of unattended vehicles especially during high heat.

"A child’s body temperature rises 3-5 times faster than an adult’s. When a child is left in a hot vehicle, that child's temperature rises quickly – and they could die within minutes," the NHTSA said in a message on their Twitter account.

Water temperatures in the 50s on the oceans and lakes are still a concern especially when someone falls unexpectedly into the water from a boat and may not be wearing a life jacket.

"Because the water is so cold it can stun you and make it difficult to survive," Kimble said. They may lose dexterity within minutes and be unable to accomplish simple tasks.

Contact reporter Dan Alexander at or via Twitter @DanAlexanderNJ

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