Wednesday's morning showers should depart by noon, leaving sunny skies and lower humidity, along with some possibly stiff breezes, the National Weather Service's Islip office said.
Thursday also should be bright and clear and any showers Friday — the odds of rain are 50% — should depart in time for a sunny weekend.
PSEG Long Island said high winds and heavy rain early Wednesday morning caused tree branches and wires to come down across its service area.
"PSEG Long Island crews worked overnight in challenging conditions to assess damage and make repairs. We have a full complement of crews working to restore outages safely and as quickly as possible," said Elizabeth Flagler, a spokeswoman for the utility.
As of 9:10 a.m., 4,235 customers were without power, according to the utility's outage map. By 11:55 a.m., that number was down to 1,366 customers without power.
A wind advisory had been in effect for western Suffolk through 8 a.m. South winds of 20 to 30 mph, with gusts up to 50 mph, were possible, the weather service said.
In eastern Suffolk, there was a high wind warning through 8 a.m. Wind gusts there were expected to reach up to 60 mph, the weather service said.
As the day progresses, the weather service said the winds should calm a bit.
"Although winds will diminish somewhat, it will continue to be on the breezy side," the weather service said, adding gusts may hit 45 mph east of the Hudson River. "Temperatures will be cooler with humidity levels dropping through the day. Highs will be in the upper 60s to lower 70s."
Despite the intense though swift-moving showers, Long Island remains on the state drought watch, and Gov. Andrew M. Cuomo on Tuesday added the Southern Tier counties — Cattaraugus, Alleghany, Steuben, and Chemung — to that list.
Thursday’s daytime high should hit 70 degrees. Friday’s possible showers could keep it a few degrees cooler and there is a 40% chance of downpours that night, the weather service said.
Saturday and Sunday should be twins when it comes to the weather: both should be sunny with highs in the mid-60s.
The rain may return Monday, when the odds of showers are 50%, but the weather service forecasts a sunny Tuesday. Highs are expected to be in the upper 60s both days.