National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

29°F

-2°C

Humidity 47%
Wind Speed W 15 G 26 mph
Barometer 29.85 in (1011.0 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 24 Feb 12:56 pm EST
Extended Forecast for

Old Field NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 31. Wind chill values between 15 and 20. West wind around 18 mph.

    High: 31 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely after 4am. Increasing clouds, with a temperature falling to near 22 by midnight, then rising to around 32 during the remainder of the night. Wind chill values between 15 and 20. West wind 13 to 18 mph becoming southwest 7 to 12 mph in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 22 °F⇑

    Partly Cloudy
    then Snow
    Likely

  • Wednesday

    Wednesday: Rain and snow, mainly before 1pm. High near 39. Wind chill values between 25 and 30. Breezy, with a southwest wind 14 to 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Rain/Snow and
    Breezy then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Wind chill values between 25 and 30. Southwest wind 11 to 13 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after 4pm. Partly sunny, with a high near 36. West wind 7 to 10 mph.

    High: 36 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow before 4am. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 31. Wind chill values between 15 and 20. West wind around 18 mph.
Tonight
Snow likely after 4am. Increasing clouds, with a temperature falling to near 22 by midnight, then rising to around 32 during the remainder of the night. Wind chill values between 15 and 20. West wind 13 to 18 mph becoming southwest 7 to 12 mph in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
Rain and snow, mainly before 1pm. High near 39. Wind chill values between 25 and 30. Breezy, with a southwest wind 14 to 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday Night
Partly cloudy, with a low around 31. Wind chill values between 25 and 30. Southwest wind 11 to 13 mph.
Thursday
A 30 percent chance of snow, mainly after 4pm. Partly sunny, with a high near 36. West wind 7 to 10 mph.
Thursday Night
A 40 percent chance of snow before 4am. Mostly cloudy, with a low around 28.
Friday
Mostly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 22.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Field NY
 40.96°N 73.14°W (Elev. 30 ft)
Last Update:
1:21 pm EST Feb 24, 2026
Forecast Valid:
1pm EST Feb 24, 2026-6pm EST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation