Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

75°F

24°C

Humidity 82%
Wind Speed S 7 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 16 Aug 10:56 pm EDT
Extended Forecast for

Selden NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 70. Southwest wind around 5 mph.

    Low: 70 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 88. Southwest wind 6 to 11 mph.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. South wind 7 to 10 mph becoming north after midnight.  Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of rain before 2pm.  Mostly cloudy, with a high near 75. Northeast wind 11 to 16 mph.

    High: 75 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 62. East wind 6 to 8 mph.

    Low: 62 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers.  Partly sunny, with a high near 80.

    High: 80 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 70. Southwest wind around 5 mph.
Sunday
Mostly sunny, with a high near 88. Southwest wind 6 to 11 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 7 to 10 mph becoming north after midnight. Chance of precipitation is 40%.
Monday
A 20 percent chance of rain before 2pm. Mostly cloudy, with a high near 75. Northeast wind 11 to 16 mph.
Monday Night
Mostly cloudy, with a low around 62. East wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 80.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Selden NY
 40.86°N 73.04°W (Elev. 115 ft)
4:01 pm EDT Aug 16, 2025
11pm EDT Aug 16, 2025-6pm EDT Aug 23, 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