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.

A Few Clouds

65°F

18°C

Humidity 84%
Wind Speed SW 8 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 19 May 6:56 am EDT
Extended Forecast for

Old Field NY

  • Today

    Today: Sunny, with a high near 87. Southwest wind 9 to 16 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Southwest wind around 14 mph.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 84. Southwest wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Sunny then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 58. North wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 70. North wind 6 to 11 mph becoming light and variable in the afternoon.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 63. Chance of precipitation is 80%.

    High: 63 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 87. Southwest wind 9 to 16 mph.
Tonight
Partly cloudy, with a low around 68. Southwest wind around 14 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 84. Southwest wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 58. North wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 70. North wind 6 to 11 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Partly sunny, with a high near 66.
Friday Night
Showers likely, mainly after 2am. Cloudy, with a low around 52. Chance of precipitation is 70%.
Saturday
Showers. High near 63. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 54. Chance of precipitation is 80%.
Sunday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 55.
Memorial Day
Mostly cloudy, with a high near 71.
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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:
2:21 am EDT May 19, 2026
Forecast Valid:
7am EDT May 19, 2026-6pm EDT May 25, 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