Weather forecast for: Syosset NY
Last Update: 2:27 am EDT Oct 11, 2026
Overnight: Mostly cloudy, with a low around 55. East wind around 6 mph.
Sunday: Rain, mainly after 11am. High near 64. East wind 9 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night: Rain and possibly a thunderstorm before 2am, then a chance of rain and thunderstorms, mainly between 2am and 5am. Low around 56. Northeast wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Columbus Day: A 30 percent chance of showers before 11am. Cloudy through mid morning, then gradual clearing, with a high near 69. North wind 9 to 13 mph.
Monday Night: Mostly clear, with a low around 55. North wind 3 to 5 mph.
Tuesday: Mostly sunny, with a high near 69.
Tuesday Night: Partly cloudy, with a low around 61.
Wednesday: Sunny, with a high near 73.
Wednesday Night: Mostly clear, with a low around 52.
Thursday: Mostly sunny, with a high near 64.
Thursday Night: Partly cloudy, with a low around 50.
Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 49.
Saturday: A 30 percent chance of showers. Partly sunny, with a high near 59.