Rain dominates the Long Island forecast this week, but temps climbing

Rain is in the Long Island forecast for the rest of the workweek with daytime highs in the 50s by Friday, according to the National Weather Service.

After a mostly clear Monday night, clouds roll in Tuesday morning with a 50% chance of rain after 11 a.m. and a high of 36 degrees. After dark, the chance of rain falls to 30% with a low dipping to 34, the weather service said.

An average chance of rain returns Wednesday, increasing to 70% overnight with a low of 39. 

Daytime temperatures should hit 50 on Thursday with more rain before dropping to 43 in the evening, according to the weather service.

There could be brief sunshine Saturday, with a high of 49 but the weather service said there’s a chance of rain yet again late Saturday overnight into Sunday, when temperatures begin to dip again.

The weather service has a small craft warning in effect for all South Shore ocean waters, from 6 p.m. Monday until 6 a.m. Tuesday from Sandy Hook, New Jersey to Moriches Inlet, and from 6 p.m. Monday until 10 a.m. Tuesday from Moriches Inlet to Montauk Point. 

The average normal high temperature for this date is 39 degrees, while the average normal low is 24. The record high for this date was 55 degrees, recorded in 1967, 1973 and 2017, the weather service said. The record low was a frigid minus 7 degrees — set in Islip in 1984.

By John Valenti

john.valenti@newsday.com

John Valenti, a reporter at Newsday since 1981, has been honored nationally by the Associated Press and Society of the Silurians for investigative, enterprise and breaking news reporting, as well as column writing, and is the author of “Swee'pea,” a book about former New York playground basketball star Lloyd Daniels. Valenti is featured in the Emmy Award-winning ESPN 30-for-30 film “Big Shot.”