With high pressure building across Long Island on Friday, winds will be light and sea waters will be "fairly tranquil" for most of the Fourth of July weekend, the National Weather Service said.

Light north winds from 5 to 10 knots Friday shifting south and southeast by the afternoon hours, plus 2 to 3 feet swells, are expected, the service's Upton office said.

The winds shift again Saturday, to the east, and increase slightly. The service said conditions could approach small craft advisory levels later Saturday and into Sunday but forecasters didn't have enough confidence to issue an advisory.

"Winds and seas likely remain below small craft advisory levels through the long term period as a weak pressure gradient remains in place, resulting in light winds," the service said.

For beachgoers, inland temperatures Friday across Long Island will reach 80 degrees with plenty of sunshine.

Water temperatures range from nearly 71 degrees at Bergen Point to 66 degrees at Montauk and Kings Point.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

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