Long Island weather: Cool and dry weekend, followed by a warmup 

Weekend weather on Long Island is expected to be dry and cool, followed by a warmup early in the week, according to the National Weather Service.

After peaking at 38 degrees Saturday afternoon in Islip, the temperature slipped to 34 degrees by just before 10 p.m. under a mostly cloudy sky. The temperature Saturday night was expected to drop further to about 27 degrees.

The weather service said that Sunday will be mostly sunny with a high temperature near 41 degrees as a west wind blows at 6 to 10 mph. The temperature Sunday night is expected to slide down to around 29 degrees under mostly cloudy skies.

"High pressure remains south of the region through Sunday, then moves offshore Sunday night into Monday," according to the weather service's area forecast.

The high temperature should then rise to around 44 degrees Monday and the mid-40s Monday. Tuesday and Wednesday are expected to be a bit warmer, with highs in the upper 40s. Monday will be mostly cloudy with Tuesday and Wednesday each progressively seeing more sun, the weather service said.

Thursday could bring rain showers but the temperature is expected to remain in the upper 40s.