Long Islanders can expect dry conditions for Friday, but that’s to be followed by a coastal storm heading in for part of the Mother’s Day weekend, forecasters say.

Make that a “strong East Coast storm,” said Jay Engle, a National Weather Service meteorologist based in Upton.

“Confidence is high in a soaking, windswept rain” during the Saturday to Sunday morning period, the weather service said in its forecast discussion.

As of late afternoon Thursday, an average of 2 inches of rain for Long Island was in the forecast, but that could change with the Friday morning update, Engle said.

“Stormy weather for the weekend,” said News 12 Long Island meteorologist Rich Hoffman.

Rain is expected to get started after sunup Saturday, Engle said, with the heaviest downpours happening Saturday afternoon and night. Winds from the east will be gusting up to 32 mph, the weather service said, with high temperatures near 54 degrees.

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Sunday, Mother’s Day, will see improvements by late morning, but conditions will still be breezy and showery, Engle said.

As of just before 4 p.m., the temperature Thursday at Long Island MacArthur Airport was 55 degrees, having hit the low 60s earlier in the afternoon, according to the weather service’s site.

On Friday, Long Islanders can expect partly sunny skies with high temperatures of around 57 degrees and northeast winds of 8 to 10 mph, the weather service said.