Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

31°F

-1°C

Humidity 33%
Wind Speed W 13 G 22 mph
Barometer 29.93 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 16 Jan 2:56 pm EST
Extended Forecast for

Hauppauge NY

  • Tonight

    Tonight: A 30 percent chance of snow after 1am.  Increasing clouds, with a temperature falling to near 29 by 8pm, then rising to around 34 during the remainder of the night. South wind 5 to 7 mph.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A chance of rain and snow before 1pm, then rain likely between 1pm and 4pm, then a slight chance of snow after 4pm.  Cloudy, with a high near 42. South wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A slight chance of snow before 7pm, then a slight chance of snow after 1am.  Mostly cloudy, with a low around 31. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Snow likely.  Cloudy, with a high near 37. Calm wind becoming west 5 to 7 mph in the morning.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 37 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am.  Cloudy during the early evening, then gradual clearing, with a low around 21. Northwest wind around 6 mph.

    Low: 21 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of snow after 1am. Increasing clouds, with a temperature falling to near 29 by 8pm, then rising to around 34 during the remainder of the night. South wind 5 to 7 mph.
Saturday
A chance of rain and snow before 1pm, then rain likely between 1pm and 4pm, then a slight chance of snow after 4pm. Cloudy, with a high near 42. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
A slight chance of snow before 7pm, then a slight chance of snow after 1am. Mostly cloudy, with a low around 31. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
Snow likely. Cloudy, with a high near 37. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 30 percent chance of snow before 1am. Cloudy during the early evening, then gradual clearing, with a low around 21. Northwest wind around 6 mph.
M.L.King Day
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 13.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly cloudy, with a high near 37.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Friday
A 30 percent chance of snow. Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
3:33 pm EST Jan 16, 2026
3pm EST Jan 16, 2026-6pm EST Jan 23, 2026
 
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Additional Resources

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