A stretch of days with temperatures in the 70s is ahead for Nassau and Suffolk counties -- with the possible exception of Wednesday, the National Weather Service said.

The service's Upton office saw a high of 79 degrees on Tuesday under sunny skies. There's a slight chance for showers the rest of the day into Wednesday, courtesy of a passing cold front.

Temperatures are expected to top out in the high 60s Wednesday, with some parts of the Island possibly hitting the 70-degree mark, forecasters said.

"The showers today will be very spotty and any moisture will be very light," News 12 Long Island meteorologist Rich Hoffman said Tuesday. "There is a better chance of showers on Wednesday, and we could see around one-quarter inch of precipitation."

Cloudy skies with winds shifting to the southeast from 5 to 10 mph are expected Tuesday night. Temperatures overnight are expected to be in the mid 50s.

Wednesday's forecast calls for a slight chance of showers, with daily highs in the high 60s.

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Hoffman said any rainfall Wednesday is needed.

"We continue to have below normal precipitation," he said. Since March 1, Long Island is about 2 inches below normal precipitation levels, according to records at Long Island MacArthur Airport, he said.

Temperatures are expected to stay above normal Thursday through Sunday and dry conditions will continue, Hoffman said.

Daily highs Thursday through the weekend are in the low to mid 70s, with sunny skies and overnight lows in the mid to upper 50s, according to the weather service.

Sunday night into Monday morning, another round of showers is possible.