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

36°F

2°C

Humidity 73%
Wind Speed S 8 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 17 Jan 9:56 pm EST
Extended Forecast for

Islip NY

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 35. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 10am and 1pm, then rain likely after 1pm. Mostly cloudy, with a high near 48. South wind 11 to 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Slight Chance
    Showers then
    Rain Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. Southwest wind 5 to 9 mph becoming northwest after midnight.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow before 1pm, then rain. High near 38. North wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 38 °F

    Slight Chance
    Rain/Snow
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Snow, mainly before 1am. Low around 19. Northwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and cold, with a high near 20.

    High: 20 °F

    Cold

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 35. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday
A slight chance of showers between 10am and 1pm, then rain likely after 1pm. Mostly cloudy, with a high near 48. South wind 11 to 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, with a low around 31. Southwest wind 5 to 9 mph becoming northwest after midnight.
Sunday
A slight chance of rain and snow before 1pm, then rain. High near 38. North wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow, mainly before 1am. Low around 19. Northwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
M.L.King Day
Mostly sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 8.
Tuesday
Mostly sunny and cold, with a high near 20.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Mostly sunny, with a high near 21.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
Mostly sunny, with a high near 30.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 34.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Islip NY
 40.73°N 73.22°W (Elev. 7 ft)
Last Update:
9:20 pm EST Jan 17, 2025
Forecast Valid:
10pm EST Jan 17, 2025-6pm EST Jan 24, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation