The rain that spread across western Long Island on Saturday may fall short of predictions, the National Weather Service said, and there is some hope for a less wet Mother’s Day on Sunday.

Showers began moving in between 4 and 6 a.m. Saturday, said Faye Barthold, a meteorologist with the weather service’s Upton bureau.

By 8 p.m. Saturday, 1.4 inches of rain had landed at Kennedy Airport, said Jay Engle, meteorologist with the National Weather Service in Upton.

Farmingdale received .96 inches of rain, while Islip got .82 inches.

The steadiest and heaviest rain came in the afternoon and continued through the evening, weather officials said.

Meteorologists were expecting about 2 inches of rain altogether, but lighter rain prompted the service to drop its forecasts to 1 to 1.5 inches around 4 p.m., Engle said.

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Weather-related delays were reported at Kennedy Airport, according to the Federal Aviation Administration website. Arriving flights were delayed an average of 3 hours and 40 minutes, the agency said, advising travelers to check with their airlines about specific flight delays.

The weather service issued a coastal flood statement for the South Shore bays of western Long Island, in effect from 10 p.m. Saturday through 1 a.m. Sunday, advising of the possibility for “isolated minor coastal flooding of the most vulnerable shore roads and/or basements.”

Matt Hammer, a meteorologist with News 12 Long Island, said, however that Mother’s Day will “not be a washout by any means.”

The rain should start to taper off from west to east after midnight, Hammer said.

Overnight, the temperatures will fall back into the mid 40s, Barthold said.

For Mother’s Day, “we will still have a chance for showers around, but it won’t be as prolonged as we’ll see today, as a steady rain all day,” Barthold said.

Sunday “will start to warm up a bit,” with temperatures perhaps still in the upper 50s on the East End while the rest of the Island feels like the low to mid 60s.

The weekend’s breezy winds will diminish a bit on Sunday but still be palpable, Barthold said.

Monday will be partly sunny and breezy with a high of 66; Tuesday, a high of 72; Wednesday and Thursday warm up to the mid 80s in parts of Nassau County, in the 70s inland and the mid 60s on the South Shore and East End.

Friday will carry on the “nice stretch of weather,” with temperatures in the low 70s into the weekend.