Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Snow Fog/Mist

34°F

1°C

Humidity 92%
Wind Speed Calm
Barometer 29.95 in (1014.4 mb)
Dewpoint 32°F (0°C)
Visibility 1.50 mi
Last update 14 Dec 2:56 am EST
Extended Forecast for

Bayport NY

Winter Weather Advisory December 14, 03:37am until December 14, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 14, 03:37am until December 14, 01:00pm

    NOW until 1:00pm Sun

    Winter Weather Advisory

  • Overnight

    Low: 31 °F

    Snow

  • Sunday

    Sunday: Snow, mainly before 1pm.  Temperature rising to near 32 by 9am, then falling to around 27 during the remainder of the day. Wind chill values between 15 and 25. Northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Snow then
    Snow Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16. Wind chill values between zero and 10. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 32 mph.

    Low: 16 °F

    Partly Cloudy
    and Blustery

  • Monday

    Monday: A 20 percent chance of snow showers after 4pm.  Increasing clouds, with a high near 30. Wind chill values between zero and 10. Northwest wind 11 to 17 mph, with gusts as high as 29 mph.

    High: 30 °F

    Sunny then
    Slight Chance
    Snow Showers

  • Monday Night

    Monday Night: A 20 percent chance of snow showers before 1am.  Cloudy during the early evening, then gradual clearing, with a low around 20. West wind around 9 mph.

    Low: 20 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Overnight
Snow. Low around 31. Light northwest wind. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Sunday
Snow, mainly before 1pm. Temperature rising to near 32 by 9am, then falling to around 27 during the remainder of the day. Wind chill values between 15 and 25. Northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Partly cloudy, with a low around 16. Wind chill values between zero and 10. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 32 mph.
Monday
A 20 percent chance of snow showers after 4pm. Increasing clouds, with a high near 30. Wind chill values between zero and 10. Northwest wind 11 to 17 mph, with gusts as high as 29 mph.
Monday Night
A 20 percent chance of snow showers before 1am. Cloudy during the early evening, then gradual clearing, with a low around 20. West wind around 9 mph.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 51.
Thursday Night
Rain. Low around 44. Chance of precipitation is 80%.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Bayport NY
 40.76°N 73.07°W (Elev. 30 ft)
1:15 am EST Dec 14, 2025
3am EST Dec 14, 2025-6pm EST Dec 20, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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