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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

64°F

18°C

Humidity 37%
Wind Speed SW 14 mph
Barometer 30.34 in (1027.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 2 Nov 1:56 pm EST
Extended Forecast for

Old Field NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Southwest wind 10 to 13 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. Southwest wind 8 to 10 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. Southwest wind 7 to 10 mph.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. Southwest wind 5 to 8 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 68. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 60.

    Low: 60 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Rain

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Southwest wind 10 to 13 mph.
Tonight
Partly cloudy, with a low around 54. Southwest wind 8 to 10 mph.
Tuesday
Mostly sunny, with a high near 67. Southwest wind 7 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 57. Southwest wind 5 to 8 mph.
Wednesday
Sunny, with a high near 68. Light southwest wind becoming south 5 to 10 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 60.
Thursday
A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 69.
Thursday Night
Rain and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Friday
Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Field NY
 40.96°N 73.14°W (Elev. 30 ft)
Last Update:
1:34 pm EST Nov 2, 2026
Forecast Valid:
2pm EST Nov 2, 2026-6pm EST Nov 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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