More very cold weather is ahead for Long Islanders on Sunday with wind chills running close to zero in the morning but lots of sun.

“By 6 a.m. Islip’s wind chill was zero on the nose,” said Jay Engle, a spokesman for the National Weather Service at Upton. “It’s just unseasonably cold air coming out of southeastern Canada — it’s pretty potent for early March.”

The wind won’t be as bad as gusts on Saturday but it will still pack a punch, according to News 12 Long Island meteorologist Bruce Avery.

“As Sunday goes along the wind stays there,” Avery said. “There’ll be plenty of sun on Sunday but it’ll still be breezy and it’ll feel like the 20s and teens during the course of the day.”

Highs will only be near 33, and at night expect the mercury to drop well below the normal 28 degrees to a frigid 16.

Avery predicted a high of 32 degrees for Coram, Southold and Southampton; 34 for Setauket and Lindenhurst; and 35 for Westbury.

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Conditions begin to warm up again on Monday when highs get back up to around 45 degrees and overnight lows will be around 37.

Mostly cloudy skies are in the forecast for Tuesday when there’s a chance for a late-day shower but the warming continues with highs near 55 degrees and overnight lows around 44.

An early shower is a possibility for Wednesday then the day turns to a mix of sun and clouds with highs near 55 and overnight lows of around 34.

Another mix of sun and clouds returns for Thursday when the temperature starts to drop again for highs near 45 and lows around 32.

Friday gets a dry start but there’s a chance of rain or snow showers late in the day. Highs will be near 44 and the temperature dips to around 34 overnight.