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.

Overcast

57°F

14°C

Humidity 90%
Wind Speed N 15 G 24 mph
Barometer 29.72 in (1006.2 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 12 Oct 6:56 am EDT
Extended Forecast for

Old Field NY

  • Columbus Day

    Columbus Day: A 20 percent chance of showers and thunderstorms before 8am. Cloudy through mid morning, then gradual clearing, with a high near 70. Northeast wind 13 to 18 mph becoming north 6 to 11 mph in the afternoon.

    High: 70 °F

    Slight Chance
    T-storms then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Northwest wind around 6 mph becoming calm after midnight.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 70. East wind 5 to 9 mph.

    High: 70 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Southwest wind 13 to 15 mph.

    Low: 65 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. West wind 9 to 11 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Partly cloudy, with a low around 57. Chance of precipitation is 60%.

    Low: 57 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Showers

Detailed Forecast

Columbus Day
A 20 percent chance of showers and thunderstorms before 8am. Cloudy through mid morning, then gradual clearing, with a high near 70. Northeast wind 13 to 18 mph becoming north 6 to 11 mph in the afternoon.
Tonight
Mostly clear, with a low around 60. Northwest wind around 6 mph becoming calm after midnight.
Tuesday
Partly sunny, with a high near 70. East wind 5 to 9 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Southwest wind 13 to 15 mph.
Wednesday
Mostly sunny, with a high near 74. West wind 9 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
Sunny, with a high near 65.
Thursday Night
Showers likely after 2am. Partly cloudy, with a low around 57. Chance of precipitation is 60%.
Friday
Showers. High near 69. Chance of precipitation is 80%.
Friday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 50. Windy. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 55. Windy.
Saturday Night
Mostly clear, with a low around 44. Windy.
Sunday
Sunny, with a high near 56.
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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:
6:26 am EDT Oct 12, 2026
Forecast Valid:
7am EDT Oct 12, 2026-6pm EDT Oct 18, 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