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Forecast: Sunny Monday leads to unsettled week and rainy Halloween

Westbound Sunrise Highway between Exits 46 and 45

Westbound Sunrise Highway between Exits 46 and 45 in Islip flooded due to torrential rain Sunday. Police were forced to close the center and right lanes. Credit: James Carbone

While the week of Halloween is filled with ghosts, ghouls and witches, the weather might also add to the spookiness of the haunted holiday.

Showers are in the forecast for Long Island on Tuesday and Thursday, Halloween night.

That precipitation will alternate with dry and warm days on Monday and Wednesday, according to the National Weather Service.

“We’re still a few days away,” National Weather Service meteorologist Dave Radell cautioned about Thursday’s forecast. “At this point it’s looking like a cloudy and showery Halloween, with a little bit above average temperatures.”

Monday will be mostly sunny with a high near 63. A chance of light rain is possible overnight into Tuesday, and Tuesday will have a 40% chance of precipitation. The high will be around 62.

Wednesday “looks like the best day of the week” with a high near 66 and partly sunny skies, Radell said. A 30% chance of rain is possible after 2 a.m.

On Halloween, rain becomes more likely after 9 a.m. Chances of precipitation are expected to be 60% during the day and 70% at night. The high will be near 63.

Rain is expected to continue Friday, mainly before noon. The high will be near 65.

But the rain could clear out in time for Halloween festivities on the weekend.

Saturday will be sunny with a high near 54. Sunday will be mostly sunny with a high near 53.

The average high temperature on Long Island this time of year is around 60 degrees.

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