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Chilly overnights, but no frost advisory on LI

Those outdoor Mother's Day plants are likely safe, after all, despite the return of chilly weather overnight.

While our neighbors in parts of southern Connecticut, the lower Hudson Valley and northeast New Jersey are advised to protect sensitive outdoor plants from possible frost, there's no such frost advisory necessary on Long Island, the National Weather Service said Monday.

That's not to say Long Islanders won't need to reach for slightly heavier jackets Tuesday morning, as many did Monday, with temperatures expected to be below normal through Wednesday, said Mike Layer, weather service meteorologist in Upton.

Monday into Tuesday's overnight lows for most of the Island are forecast to be in the upper 30s to low 40s, he said, with possible dips to the low to mid 30s in the Pine Barrens area.

The Sunday into Monday overnight low was 48 degrees in Islip, just 1 degree below normal, he said. Overnight temperatures dipped to 38 degrees in Shirley and 32 in Westhampton Beach, he said.

Frost is a function of not just temperature, he said, but also moisture and winds.

Tuesday's high in Islip -- where the norm is 67 - is expected to be in the upper 50s approaching 60, he said, with Wednesday moving into the mid-60s.

"After that, spring returns," Layer said, looking to Thursday.

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