Winter Storm in the Central Appalachians through the Northeast; Heavy Snow in the Great Basin and Rockies

A winter storm will impact the central Appalachians to the Northeast through the night. Accumulating snow is expected for interior New England and the northern Mid-Atlantic. Scattered showers and occasional thunderstorms will persist across Florida and the Southeast coast. Locally heavy mountain snow is expected in the Great Basin and Rockies over the next couple of days. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

36°F

2°C

Humidity 73%
Wind Speed N 17 G 28 mph
Barometer 29.86 in (1011.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 3 Dec 4:56 am EST
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Today

    Today: Sunny, with a high near 43. Wind chill values between 25 and 35. Northwest wind 6 to 11 mph.

    High: 43 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. Wind chill values between 20 and 25. Calm wind becoming west 5 to 7 mph after midnight.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 41. Wind chill values between 20 and 30. West wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 41 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 16. Northwest wind 6 to 15 mph, with gusts as high as 28 mph.

    Low: 16 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 32. Light and variable wind becoming southwest 5 to 8 mph in the morning.

    High: 32 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 40 percent chance of light snow.  Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Light
    Snow

  • Saturday

    Saturday: A 30 percent chance of light rain before 1pm.  Partly sunny, with a high near 40.

    High: 40 °F

    Chance Light
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 43. Wind chill values between 25 and 35. Northwest wind 6 to 11 mph.
Tonight
Mostly clear, with a low around 28. Wind chill values between 20 and 25. Calm wind becoming west 5 to 7 mph after midnight.
Thursday
Increasing clouds, with a high near 41. Wind chill values between 20 and 30. West wind 8 to 15 mph, with gusts as high as 26 mph.
Thursday Night
Mostly clear, with a low around 16. Northwest wind 6 to 15 mph, with gusts as high as 28 mph.
Friday
Increasing clouds, with a high near 32. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Friday Night
A 40 percent chance of light snow. Mostly cloudy, with a low around 27.
Saturday
A 30 percent chance of light rain before 1pm. Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.8°N 73.09°W (Elev. 98 ft)
3:11 am EST Dec 3, 2025
5am EST Dec 3, 2025-6pm EST Dec 9, 2025
 
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