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Forecast: Beautiful Sunday, but sun shifting to storms by Tuesday

Sunday will be another beautiful day on Long Island, ending a weekend of great weather with lots of sun and no rain in the forecast.

A chance of thunderstorms enters the weather picture Tuesday and Wednesday, forecasters said.

News 12 Long Island meteorologist Bruce Avery said to look for a high of 80 inland and 70s by the water on the North Shore, the Twin Forks and the South Shore on Sunday before clouds roll in at night with a low of 63 degrees.

Avery said to expect Sunday temperatures of 77 in Cutchogue and East Hampton and 82 in Hicksville and Baldwin.

A mix of sun and clouds is ahead for Monday, when highs will be near 78 and lows near 65. “Sunday into Monday the humidity will start to increase and there’ll be a possibility of patchy fog.”

Sunday and Monday will be mostly sunny, but a 40 percent chance of thunderstorms is forecast Tuesday night, said Mike Silva, a meteorologist with the National Weather Service in Upton.

Skies will be cloudy on Tuesday ahead of possible thunderstorms. Highs will be near 79, with lows again near 65.

A mostly sunny day is predicted for Wednesday, though there is another chance of thunderstorms, but continued warm conditions will bring highs near 80s and lows near 64.

“On Wednesday, there’s a 50 percent chance [all day] of rain,” Silva said. He said any rain will be due to a cold front from the west moving through the region.

On Thursday, there’ll be another mix of sun and clouds when highs will be near 79 and lows near 65.

Mostly sunny skies return Friday just in time for the weekend. Highs near 79 are expected and lows again will be near 65.

“We’ll be right around normal this week,” Silva said. “The normal high is right around 80.”

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