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 and Breezy

48°F

9°C

Humidity 42%
Wind Speed N 21 G 31 mph
Barometer 30.07 in (1018.4 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 24 Dec 12:56 pm EST
Extended Forecast for

East Patchogue NY

Winter Storm Watch December 26, 04:00pm until December 27, 01:00pm
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Sunny, with a high near 45. Breezy, with a north wind 15 to 20 mph, with gusts as high as 31 mph.

    High: 45 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 28. North wind 5 to 7 mph becoming calm in the evening.

    Low: 28 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Partly sunny, with a high near 44. Southwest wind 6 to 14 mph becoming northwest in the afternoon.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20. Wind chill values between 10 and 15. North wind 11 to 15 mph.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 1pm. Increasing clouds, with a high near 31. North wind 6 to 10 mph.

    High: 31 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Snow. Low around 23. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 23 °F

    Snow

  • Saturday

    Saturday: A 50 percent chance of snow before 1pm. Cloudy, with a high near 34.

    High: 34 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 45. Breezy, with a north wind 15 to 20 mph, with gusts as high as 31 mph.
Tonight
Increasing clouds, with a low around 28. North wind 5 to 7 mph becoming calm in the evening.
Christmas Day
Partly sunny, with a high near 44. Southwest wind 6 to 14 mph becoming northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 20. Wind chill values between 10 and 15. North wind 11 to 15 mph.
Friday
A 20 percent chance of snow after 1pm. Increasing clouds, with a high near 31. North wind 6 to 10 mph.
Friday Night
Snow. Low around 23. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Saturday
A 50 percent chance of snow before 1pm. Cloudy, with a high near 34.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 40.
Sunday Night
Rain. Low around 30. Chance of precipitation is 80%.
Monday
Rain likely. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 32.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
1:05 pm EST Dec 24, 2025
Forecast Valid:
1pm EST Dec 24, 2025-6pm EST Dec 30, 2025
 
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