Sunny skies on Long Island are predicted for Thursday, but rain is likely after midnight, with rain expected on and off through the first full weekend of summer, the National Weather Service said.

The high temperature Thursday should be near 80, dipping to the low 70s for Friday and Saturday, the weather service said.

Around a third of an inch of rain, expected to be steady and last into the early hours of the Friday morning commute, is forecast for Long Island, said Carlie Buccola, weather service meteorologist based in Upton.

See alsoCurrent conditions

The chance of rain is 60 percent for early Friday, 50 percent for Saturday afternoon, 80 percent for Saturday overnight, and 60 percent for Sunday before 2 p.m.

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The "best chance" of rain will be Friday morning and Saturday night into Sunday morning, News 12 Long Island meteorologist Rich Hoffman said.

"Significant widespread rainfall" is expected for overnight Saturday, with 1 to 2 inches possible and the potential for locally higher amounts, the weather service said.

As of Thursday morning, the Island remained in the U.S. Drought Monitor's moderate drought category, even as June's rainfall so far -- 3.08 inches -- is just 0.51 below normal. That, though, is following a record-dry May, which saw just 0.42 of an inch of rain, 3.36 below the norm. The drought monitor indicated that precipitation has not been enough to substantially affect conditions.