Kealan Dillon, 3, of Williston Park, balances and bounces from...

Kealan Dillon, 3, of Williston Park, balances and bounces from rock to rock while exploring at Christopher Morley Park in Roslyn with his mom, on a mild Wednesday. Credit: Danielle Silverman

Overnight showers, followed by possible rain Thursday morning, will usher in a sunny and milder Thursday afternoon for Long Island, the National Weather Service said.

The high will be a relatively balmy 56 degrees but the sun won't last, forecasters said. Scattered showers could return Thursday evening.

Friday brings abundant sunshine but cooler temperatures, a high of just 45 degrees. Gusty winds will enhance the chill as well, the weather service said with winds of up to 25 mph blowing.

The winds should die down at night, forecasters said, but the temperature also drops to 32 degrees,

Then two days of sun. Saturday's high is about 47 degrees, with a low of 29 degrees and Sunday's is a few degrees higher with a low of 39.

A 50% chance of rain is forecast for Sunday night and Monday before the sun returns Tuesday, the weather service said.

After a cloudy night, sunshine should return, and rule the tristate skies all the way from Friday to Sunday, according to the weather service.

Showers again may dampen Sunday night; the odds are 50%. And Monday’s odds are only slightly lower at 40%, though Tuesday should offer blue skies.

After that unusual warm-up on Thursday, temperatures should rise into the upper 40s and low 50s during the next several days, sinking to around freezing at night, the forecasters said.

While there may be some storms arriving from Canada early next week, the weather service noted its systems recently have been "over amplifying" the effects, "so it is possible to see a weaker system overall in future runs as the event draws near."

So far this autumn, only trace amounts of snow have fallen in the metropolitan area, a pattern that fits much of the rest of the nation.

For today, the tristate area’s clear skies are the result of a high pressure system, whose falling air dries and cools, the weather service said.

The rain anticipated tonight is arriving with that Midwest warm front --- but snowflakes might also fall. "Precipitation type expected to be rain for coastal areas, and mixed rain and snow for inland areas," it said.

"Temperatures tonight will be in the upper 20s and low 30s across inland areas with upper 30s and lower 40s along the coast."

Thursday’s atypical warmth, once again due to that warm front, also might deliver what the weather service calls a "passing shower" during the afternoon and evening.

Also, wind gusts could climb to 25 to 30 mph, it added.

Those gusts could continue into Friday, as a sky-clearing high pressure system starts dominating to the west, opposed by a rain-creating shortwave or low pressure system in the northeast.

The difference in air pressure between those two systems "will keep breezy conditions going through much of the day," the service said. It added: Through the weekend, "There will be several frontal systems and shortwaves moving across the Northeast, but there still do not appear to be any significant impacts at this time."

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