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

33°F

1°C

Humidity 75%
Wind Speed Calm
Barometer 30.12 in (1020.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 7 Nov 6:56 am EST
Extended Forecast for

Belle Terre NY

Frost Advisory November 7, 07:39am until November 7, 08:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory November 7, 07:39am until November 7, 08:00am

    NOW until 8:00am Fri

    Frost Advisory

  • Today

    High: 60 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tonight

    Tonight: Showers, mainly before 4am. Low around 57. Breezy, with a south wind 15 to 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 62. West wind 8 to 13 mph.

    High: 62 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. Northwest wind around 8 mph becoming east after midnight.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 60. Southeast wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Slight Chance
    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain. Low around 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Rain

  • Monday

    Monday: A 50 percent chance of showers before 1pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. Breezy.

    Low: 38 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

Detailed Forecast

Today
Partly sunny, with a high near 60. Breezy, with a south wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon.
Tonight
Showers, mainly before 4am. Low around 57. Breezy, with a south wind 15 to 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 62. West wind 8 to 13 mph.
Saturday Night
Partly cloudy, with a low around 51. Northwest wind around 8 mph becoming east after midnight.
Sunday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 60. Southeast wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 50 percent chance of showers before 1pm. Mostly cloudy, with a high near 55.
Monday Night
Partly cloudy, with a low around 38. Breezy.
Veterans Day
Mostly sunny, with a high near 46. Windy.
Tuesday Night
Partly cloudy, with a low around 42. Windy.
Wednesday
Partly sunny, with a high near 52. Breezy.
Wednesday Night
Partly cloudy, with a low around 46. Breezy.
Thursday
Mostly sunny, with a high near 51. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belle Terre NY
 40.96°N 73.08°W (Elev. 3 ft)
Last Update:
5:51 am EST Nov 7, 2025
Forecast Valid:
7am EST Nov 7, 2025-6pm EST Nov 13, 2025
 
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