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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain

49°F

9°C

Humidity 86%
Wind Speed NE 16 G 28 mph
Barometer 29.43 in (996.4 mb)
Dewpoint 45°F (7°C)
Visibility 8.00 mi
Wind Chill43°F (6°C)
Last update 12 Nov 8:56 pm EST
Extended Forecast for

Selden NY

  • Tonight

    Tonight: Showers before midnight, then rain after midnight. Low around 43. Northeast wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Showers

  • Friday

    Friday: Rain, mainly before 4pm. High near 47. Breezy, with a north wind 13 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 34. North wind around 8 mph.

    Low: 34 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 48. Northwest wind 8 to 11 mph.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. Northwest wind around 8 mph.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers before midnight, then rain after midnight. Low around 43. Northeast wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 4pm. High near 47. Breezy, with a north wind 13 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 34. North wind around 8 mph.
Saturday
Partly sunny, with a high near 48. Northwest wind 8 to 11 mph.
Saturday Night
Partly cloudy, with a low around 35. Northwest wind around 8 mph.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Clear, with a low around 36.
Wednesday
Sunny, with a high near 57.
Wednesday Night
Clear, with a low around 39.
Thursday
Sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Selden NY
 40.86°N 73.04°W (Elev. 115 ft)
Last Update:
5:04 pm EST Nov 12, 2026
Forecast Valid:
9pm EST Nov 12, 2026-6pm EST Nov 19, 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