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.

Rain Fog/Mist

39°F

4°C

Humidity 93%
Wind Speed E 13 G 17 mph
Barometer 29.65 in (1003.9 mb)
Dewpoint 37°F (3°C)
Visibility 2.00 mi
Wind Chill31°F (-1°C)
Last update 20 Feb 1:56 pm EST
Extended Forecast for

Patchogue NY

Winter Storm Watch February 22, 06:00am until February 23, 06:00pm
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Rain. High near 40. East wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain

  • Tonight

    Tonight: Rain before 1am, then a slight chance of rain and snow between 1am and 3am, then a slight chance of snow after 3am. Low around 31. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain then
    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 44. West wind around 6 mph becoming north in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow before 1am, then a chance of rain between 1am and 4am, then a chance of rain and snow after 4am. Mostly cloudy, with a low around 30. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: Snow likely, mainly after 1pm. Cloudy, with a high near 37. East wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 37 °F

    Chance Snow
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Areas of blowing snow. Low around 28. Windy. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    Low: 28 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 1pm. Areas of blowing snow before 1pm. High near 35. Windy. Chance of precipitation is 80%.

    High: 35 °F

    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain. High near 40. East wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain before 1am, then a slight chance of rain and snow between 1am and 3am, then a slight chance of snow after 3am. Low around 31. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 44. West wind around 6 mph becoming north in the afternoon.
Saturday Night
A chance of rain and snow before 1am, then a chance of rain between 1am and 4am, then a chance of rain and snow after 4am. Mostly cloudy, with a low around 30. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 30%.
Sunday
Snow likely, mainly after 1pm. Cloudy, with a high near 37. East wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Areas of blowing snow. Low around 28. Windy. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Monday
Snow, mainly before 1pm. Areas of blowing snow before 1pm. High near 35. Windy. Chance of precipitation is 80%.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 40.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 32.
Thursday
Rain likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
2:17 pm EST Feb 20, 2026
Forecast Valid:
2pm EST Feb 20, 2026-6pm EST Feb 26, 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