Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Snow Fog/Mist

31°F

-1°C

Humidity 85%
Wind Speed E 12 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 27°F (-3°C)
Visibility 2.50 mi
Wind Chill22°F (-6°C)
Last update 15 Feb 11:56 pm EST
Extended Forecast for

Holbrook NY

  • Overnight

    Overnight: Snow, mainly between 1am and 4am.  Low around 30. Northeast wind around 6 mph.  Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 30 °F

    Snow

  • Washington's Birthday

    Washington's Birthday: A 30 percent chance of snow, mainly before 7am.  Cloudy through mid morning, then gradual clearing, with a high near 38. Wind chill values between 25 and 35. Northeast wind 5 to 9 mph becoming light  in the afternoon.

    High: 38 °F

    Chance Snow

  • Monday Night

    Monday Night: A slight chance of snow showers and sleet after 1am.  Increasing clouds, with a low around 27. Calm wind.  Chance of precipitation is 20%.

    Low: 27 °F

    Partly Cloudy
    then Slight
    Chance
    Snow/Sleet

  • Tuesday

    Tuesday: Partly sunny, with a high near 41. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 31. Calm wind.

    Low: 31 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Rain likely, mainly after noon.  Cloudy, with a high near 40. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely before midnight.  Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow, mainly between 1am and 4am. Low around 30. Northeast wind around 6 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Washington's Birthday
A 30 percent chance of snow, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 38. Wind chill values between 25 and 35. Northeast wind 5 to 9 mph becoming light in the afternoon.
Monday Night
A slight chance of snow showers and sleet after 1am. Increasing clouds, with a low around 27. Calm wind. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 41. Calm wind becoming southwest 5 to 7 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 31. Calm wind.
Wednesday
Rain likely, mainly after noon. Cloudy, with a high near 40. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely before midnight. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Thursday
Mostly cloudy, with a high near 40.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A chance of snow before 7am, then rain likely. Mostly cloudy, with a high near 41. Chance of precipitation is 70%.
Friday Night
Rain likely. Cloudy, with a low around 32. Chance of precipitation is 60%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
Holbrook NY
 40.8°N 73.09°W (Elev. 98 ft)
7:19 pm EST Feb 15, 2026
12am EST Feb 16, 2026-6pm EST Feb 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database