National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Farmingdale - Republic Airport (KFRG)

Lat: 40.73°NLon: 73.42°WElev: 72ft.

Fair

79°F

26°C

Humidity 72%
Wind Speed S 13 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 Sep 1:53 pm EDT
Extended Forecast for

Locust Valley NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 80. South wind around 9 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 68. South wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 80. North wind 7 to 10 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear during the early evening, then becoming mostly cloudy, with a low around 57. North wind 8 to 11 mph.

    Low: 57 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Northeast wind 5 to 10 mph.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly after 8am. High near 70. Chance of precipitation is 80%.

    High: 70 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 2am. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Monday

    Monday: A 40 percent chance of showers. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 80. South wind around 9 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 68. South wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 30%.
Friday
Sunny, with a high near 80. North wind 7 to 10 mph.
Friday Night
Clear during the early evening, then becoming mostly cloudy, with a low around 57. North wind 8 to 11 mph.
Saturday
Mostly sunny, with a high near 70. Northeast wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
Showers, mainly after 8am. High near 70. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 2am. Low around 60. Chance of precipitation is 80%.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 68.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 62.
Tuesday Night
Mostly cloudy, with a low around 54. Breezy.
Wednesday
Partly sunny, with a high near 62. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Locust Valley NY
 40.89°N 73.6°W (Elev. 98 ft)
Last Update:
2:41 pm EDT Sep 17, 2026
Forecast Valid:
2pm EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation