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

77°F

25°C

Humidity 77%
Wind Speed SW 13 mph
Barometer 30.18 in (1022.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Sep 1:56 pm EDT
Extended Forecast for

2 Miles NNW Medford NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 79. South wind 9 to 11 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms between 10pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 67. South wind around 8 mph. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 78. North wind 7 to 10 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. Northeast wind 7 to 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Northeast wind 6 to 9 mph.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 56.

    Low: 56 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers. High near 71. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 2am. Low around 57. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Monday

    Monday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 68.

    High: 68 °F

    Chance
    Showers then
    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 79. South wind 9 to 11 mph.
Tonight
A chance of showers and thunderstorms between 10pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 67. South wind around 8 mph. Chance of precipitation is 50%.
Friday
Sunny, with a high near 78. North wind 7 to 10 mph.
Friday Night
Partly cloudy, with a low around 57. Northeast wind 7 to 10 mph.
Saturday
Mostly sunny, with a high near 68. Northeast wind 6 to 9 mph.
Saturday Night
Increasing clouds, with a low around 56.
Sunday
Showers. High near 71. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 2am. Low around 57. Chance of precipitation is 80%.
Monday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 68.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Medford NY
 40.84°N 72.99°W (Elev. 128 ft)
Last Update:
11:11 am EDT Sep 17, 2026
Forecast Valid:
2pm EDT Sep 17, 2026-6pm EDT Sep 23, 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