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Locust Valley, New York Weather Forecast
Locust Valley, New York Weather
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Weather Forecast for Locust Valley, New York : Nassau County
Issued: 12:38 pm EST Dec 21, 2025 Latitude: 40.8759324 Longitude: -73.5970707 View on Google Maps

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Tonight Monday Tuesday Wednesday Christmas Day Friday Saturday Sunday
Mostly Clear on Tonight Sunny on Monday 80% chance of rain & snow on Tuesday Sunny on Wednesday 30% chance of rain on Christmas Day 50% chance of rain on Friday Mostly Cloudy on Saturday 40% chance of rain on Sunday
Low: 26°F High: 38°F High: 41°F High: 44°F High: 44°F High: 53°F High: 43°F High: 45°F
Low: 30°F Low: 38°F Low: 31°F Low: 37°F Low: 34°F Low: 33°F  
Mostly Clear Sunny Rain & Snow Sunny Rain Rain Mostly Cloudy Rain
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Mostly Clear on Tonight Tonight... Mostly clear, with a low around 26. Wind chill values between 15 and 20. Northwest wind 11 to 15 mph, with gusts as high as 28 mph.

Sunny on Monday Monday... Sunny, with a high near 38. Wind chill values between 15 and 25. Northwest wind around 10 mph.

60% chance of snow Monday Night Monday Night... Snow likely after 1am. Mostly cloudy, with a low around 30. Southwest wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

80% chance of rain & snow Tuesday Tuesday... Rain and snow, becoming all rain after 10am. High near 41. South wind 6 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a steady temperature around 38. West wind 7 to 14 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 44.

Increasing Clouds on Wednesday Night Wednesday Night... Increasing clouds, with a low around 31.

30% chance of rain Christmas Day Christmas Day... A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 44.

30% chance of rain Thursday Night Thursday Night... A 30 percent chance of rain after 1am. Cloudy, with a low around 37.

50% chance of rain Friday Friday... A 50 percent chance of rain. Cloudy, with a high near 53.

50% chance of rain Friday Night Friday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 34.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 43.

30% chance of rain Saturday Night Saturday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 33.

40% chance of rain Sunday Sunday... A 40 percent chance of rain. Mostly cloudy, with a high near 45.

Sun Almanac for Locust Valley, New York
Sunrise: 07:16 AM
Sunset: 4:30 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:09 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.