National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

71°F

22°C

Humidity 68%
Wind Speed E 5 mph
Barometer 30.26 in (1024.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 14 Sep 7:56 pm EDT
Extended Forecast for

East Setauket NY

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 62. East wind 3 to 6 mph.

    Low: 62 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 75. East wind 7 to 10 mph.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Southeast wind 3 to 6 mph.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. East wind 6 to 8 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 61. Southeast wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 62. East wind 3 to 6 mph.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 75. East wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 58. Southeast wind 3 to 6 mph.
Monday
Sunny, with a high near 75. East wind 6 to 8 mph.
Monday Night
Mostly cloudy, with a low around 61. Southeast wind around 6 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 76.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 65.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 75.
Wednesday Night
A 40 percent chance of showers. Cloudy, with a low around 65.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 74.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Friday
Partly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
East Setauket NY
 40.94°N 73.11°W (Elev. 52 ft)
Last Update:
7:19 pm EDT Sep 14, 2024
Forecast Valid:
8pm EDT Sep 14, 2024-6pm EDT Sep 21, 2024
 
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