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.

Mostly Cloudy

57°F

14°C

Humidity 74%
Wind Speed SE 3 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 15 Oct 11:56 pm EDT
Extended Forecast for

Old Field NY

  • Overnight

    Overnight: Showers likely after 5am. Increasing clouds, with a temperature rising to around 59 by 4am. Southeast wind 8 to 10 mph. Chance of precipitation is 60%.

    Low: 56 °F⇑

    Showers
    Likely

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm. High near 72. Southwest wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms before 2am, then showers likely. Low around 50. Breezy, with a west wind 14 to 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers then
    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: Showers likely before 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. Breezy, with a north wind 20 to 24 mph. Chance of precipitation is 60%.

    High: 54 °F

    Breezy.
    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. Breezy, with a north wind 16 to 21 mph.

    Low: 44 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely after 5am. Increasing clouds, with a temperature rising to around 59 by 4am. Southeast wind 8 to 10 mph. Chance of precipitation is 60%.
Friday
Showers, with thunderstorms also possible after 2pm. High near 72. Southwest wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms before 2am, then showers likely. Low around 50. Breezy, with a west wind 14 to 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely before 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. Breezy, with a north wind 20 to 24 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 44. Breezy, with a north wind 16 to 21 mph.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 61.
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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:
2:36 pm EDT Oct 15, 2026
Forecast Valid:
12am EDT Oct 16, 2026-6pm EDT Oct 22, 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