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.

Fog/Mist

59°F

15°C

Humidity 90%
Wind Speed Calm
Barometer 29.70 in (1005.7 mb)
Dewpoint 56°F (13°C)
Visibility 0.50 mi
Last update 9 Nov 8:56 pm EST
Extended Forecast for

Stony Brook NY

Freeze Watch November 11, 01:00am until November 11, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: Areas of drizzle with a chance of showers between 1am and 4am, then rain after 4am. Patchy fog before 4am. Low around 50. Light and variable wind becoming south around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Areas Drizzle
    and Patchy
    Fog then Rain
    and Patchy
    Fog

  • Monday

    Monday: Rain, mainly before 10am. High near 59. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain then
    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. Wind chill values between 20 and 25. West wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 32 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 44. Wind chill values between 20 and 30. Breezy, with a west wind 17 to 24 mph, with gusts as high as 38 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of drizzle with a chance of showers between 1am and 4am, then rain after 4am. Patchy fog before 4am. Low around 50. Light and variable wind becoming south around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain, mainly before 10am. High near 59. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Partly cloudy, with a low around 32. Wind chill values between 20 and 25. West wind 13 to 15 mph, with gusts as high as 26 mph.
Veterans Day
Mostly sunny, with a high near 44. Wind chill values between 20 and 30. Breezy, with a west wind 17 to 24 mph, with gusts as high as 38 mph.
Tuesday Night
Partly cloudy, with a low around 34. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 37.
Friday
Mostly sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
Last Update:
9:20 pm EST Nov 9, 2025
Forecast Valid:
9pm EST Nov 9, 2025-6pm EST Nov 16, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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