Showers and thunderstorms expected at midweek are forecast to clear out by the time Long Islanders get ready to celebrate the Fourth of July, according to the National Weather Service.

The week will start out seasonably, with mostly sunny skies Sunday and highs in the low to mid-80s, said John Murray, meteorologist with the service's Upton bureau.

Slight winds will kick up Sunday afternoon, with breezes coming out of the south at 10 to 15 mph, he said.

Sunday night will see some patchy fog, with lows ranging from the mid-50s to low 60s.

Monday will be in the low 80s, with partly sunny skies and dry conditions. Monday night will be warmer, though, with lows in the mid- to upper 60s, Murray said.

The first hint of precipitation comes Tuesday afternoon into the evening, with a slight chance of showers and thunderstorms, he said. Highs on Tuesday will be in the mid- to upper 80s, with lows in the low 70s.

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Wednesday's high will be in the mid- to upper 80s, with a 40 to 50 percent chance of showers and thunderstorms that will continue into Thursday, Murray said.

Lows on Wednesday will again be in the low 70s.

Thursday will see highs in the low 80s, with lows in the mid- to upper 60s.

The chance of showers continues into Fourth of July morning, with highs on Friday in the low 80s, Murray said.

While the forecast is still uncertain this far out, Murray said for now it appears that the skies will be dry in time for fireworks Friday night.

Lows on Friday are expected to be in the low to mid-60s.