7-Day Forecast 40.73°N 73.22°W (Text-Only)
NWS Forecast for: Islip NY
Issued by: National Weather Service New York, NY
Last Update: 1:42 am EST Feb 11, 2026
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  • Today

    Today: Mostly sunny, with a high near 4. Northwest wind 11 to 16 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 42 km/h.

    High: 4 °C

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around -4. West wind around 21 km/h, with gusts as high as 42 km/h.

    Low: -4 °C

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 2. Wind chill values between -5 and -10. Northwest wind 16 to 23 km/h, with gusts as high as 40 km/h.

    High: 2 °C

    Sunny

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around -7. Northwest wind around 11 km/h.

    Low: -7 °C

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 1. Northwest wind 10 to 14 km/h.

    High: 1 °C

    Sunny

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around -3.

    Low: -3 °C

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 4.

    High: 4 °C

    Mostly Sunny

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around -4.

    Low: -4 °C

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 3.

    High: 3 °C

    Mostly Sunny



  • Today: Mostly sunny, with a high near 4. Northwest wind 11 to 16 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 42 km/h.

    Tonight: Mostly clear, with a low around -4. West wind around 21 km/h, with gusts as high as 42 km/h.

    Thursday: Sunny, with a high near 2. Wind chill values between -5 and -10. Northwest wind 16 to 23 km/h, with gusts as high as 40 km/h.

    Thursday Night: Partly cloudy, with a low around -7. Northwest wind around 11 km/h.

    Friday: Sunny, with a high near 1. Northwest wind 10 to 14 km/h.

    Friday Night: Partly cloudy, with a low around -3.

    Saturday: Mostly sunny, with a high near 4.

    Saturday Night: Mostly clear, with a low around -4.

    Sunday: Mostly sunny, with a high near 3.

    Sunday Night: A chance of rain before 1am, then a chance of snow. Mostly cloudy, with a low around -2. Chance of precipitation is 30%.

    Washington's Birthday: A 30 percent chance of rain. Partly sunny, with a high near 6.

    Monday Night: Partly cloudy, with a low around -1.

    Tuesday: Partly sunny, with a high near 5.



    Islip NY
     40.73°N 73.22°W (Elev. 7 m)

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