Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

46°F

8°C

Humidity 63%
Wind Speed S 12 mph
Barometer 30.52 in (1033.5 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 9 Apr 4:56 pm EDT
Extended Forecast for

Hauppauge NY

  • Tonight

    Tonight: Patchy fog before midnight, then patchy fog after 1am.  Otherwise, partly cloudy, with a low around 37. South wind 5 to 9 mph becoming calm  in the evening.

    Low: 37 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 55. Light south wind increasing to 5 to 10 mph in the morning.

    High: 55 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. South wind 7 to 13 mph.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60. Northwest wind 11 to 13 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 41. North wind 3 to 5 mph.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog before midnight, then patchy fog after 1am. Otherwise, partly cloudy, with a low around 37. South wind 5 to 9 mph becoming calm in the evening.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 55. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly cloudy, with a low around 44. South wind 7 to 13 mph.
Saturday
Sunny, with a high near 60. Northwest wind 11 to 13 mph.
Saturday Night
Clear, with a low around 41. North wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Mostly cloudy, with a high near 65.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
2:47 pm EDT Apr 9, 2026
5pm EDT Apr 9, 2026-6pm EDT Apr 16, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database