Weather forecast for 10 daysLocust Valley, NY

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 57°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphNE 37°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:09 am EDT
  • Sunset: 6:09 pm EDT
  • ▼
On Sunday, in Locust Valley, sunny skies and pleasant visibility are expected.
The anticipated temperature range extends from a high of a refreshing 57.2°F to a low of a chilly 42.8°F.
The temperature is predicted to be moderately lower than the standard October peak of 63°F.
Sunrise will be at 7:09 am and sunset at 6:09 pm; the daylight will last for 11h and 1min.

10-day overview

Daily temperatures

Warmest day: Tuesday 68°C.
Minimum temperature: 57°C.

Chance of precipitation

Highest chance: Thursday 13%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 57°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphNE 37°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:09 am EDT
  • Sunset: 6:09 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 16mphNE 35°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:10 am EDT
  • Sunset: 6:08 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphNNE 20°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:11 am EDT
  • Sunset: 6:06 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 61°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 17mphNNE 29°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:12 am EDT
  • Sunset: 6:05 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 12mphN 3°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:13 am EDT
  • Sunset: 6:03 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 59°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 13mphNNE 12°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:14 am EDT
  • Sunset: 6:02 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphNNE 32°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:16 am EDT
  • Sunset: 6:01 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphNNW 327°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:17 am EDT
  • Sunset: 5:59 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphNW 323°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:18 am EDT
  • Sunset: 5:58 pm EDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 64°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 11mphN 356°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:19 am EDT
  • Sunset: 5:57 pm EDT
  • ▼
Looking ahead to the next ten days, a combination of dry and sunny and cloudy weather is expected.
Rain is not predicted in Locust Valley in the upcoming period.
In the upcoming days, the maximum temperature will vary between 57.2°F and 68°F, while the minimum temperature is forecast to range between 39.2°F and 50°F.
Tuesday will be the warmest day, with a maximum temperature of 68°F; with a maximum temperature of 57.2°F, Sunday and Saturday will be the coldest days.
Updated: Oct 18, 2026 @ 10:26:32 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Locust Valley, expect consistent sunshine and open skies.

Today, the highest temperature will be 57.2°F, while the lowest temperature will be 42.8°F.
The highest temperature today will be moderately lower than the average maximum temperature in October. The lowest temperature will be notably lower than the average low of 53.4°F.

On Sunday, in Locust Valley, sunrise will be at 7:09 am and sunset at 6:09 pm (EDT).

Today, the daylight will last for 11h and 1min.