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.

Overcast

25°F

-4°C

Humidity 66%
Wind Speed W 10 mph
Barometer 30.20 in (1022.7 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 15 Dec 11:53 pm EST
Extended Forecast for

West Islip NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 20. Wind chill values between 10 and 15. West wind around 10 mph, with gusts as high as 21 mph.

    Low: 20 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 34. Wind chill values between 15 and 25. West wind around 7 mph.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a temperature falling to near 26 by 8pm, then rising to around 34 during the remainder of the night. Wind chill values between 20 and 25. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 26 °F⇑

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. Southwest wind 11 to 15 mph.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. West wind 5 to 10 mph becoming light northwest after midnight.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain, mainly after 1am. Low around 42. Chance of precipitation is 90%.

    Low: 42 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain likely before 1pm. Partly sunny, with a high near 54. Breezy. Chance of precipitation is 60%.

    High: 54 °F

    Rain Likely
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 20. Wind chill values between 10 and 15. West wind around 10 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 34. Wind chill values between 15 and 25. West wind around 7 mph.
Tuesday Night
Partly cloudy, with a temperature falling to near 26 by 8pm, then rising to around 34 during the remainder of the night. Wind chill values between 20 and 25. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 44. Southwest wind 11 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 29. West wind 5 to 10 mph becoming light northwest after midnight.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Rain, mainly after 1am. Low around 42. Chance of precipitation is 90%.
Friday
Rain likely before 1pm. Partly sunny, with a high near 54. Breezy. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Islip NY
 40.7°N 73.31°W (Elev. 3 ft)
Last Update:
6:41 pm EST Dec 15, 2025
Forecast Valid:
12am EST Dec 16, 2025-6pm EST Dec 22, 2025
 
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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