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.

Mostly Cloudy

59°F

15°C

Humidity 58%
Wind Speed SE 16 G 23 mph
Barometer 30.32 in (1026.5 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 4 May 2:56 pm EDT
Extended Forecast for

5 Miles SSE West Sayville NY

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. East wind around 14 mph.

    Low: 47 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers, mainly after 2pm. Cloudy, with a high near 53. East wind around 14 mph.

    High: 53 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 8pm. Cloudy, with a temperature rising to around 54 by 4am. Southeast wind around 13 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F⇑

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers before 2pm. Cloudy, with a high near 60. Southwest wind around 11 mph.

    High: 60 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 55. Southwest wind 7 to 9 mph becoming west after midnight.

    Low: 55 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. East wind around 14 mph.
Sunday
A 50 percent chance of showers, mainly after 2pm. Cloudy, with a high near 53. East wind around 14 mph.
Sunday Night
Showers likely, mainly after 8pm. Cloudy, with a temperature rising to around 54 by 4am. Southeast wind around 13 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A 30 percent chance of showers before 2pm. Cloudy, with a high near 60. Southwest wind around 11 mph.
Monday Night
A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 55. Southwest wind 7 to 9 mph becoming west after midnight.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 54.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 58.
Thursday Night
Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 61.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 58.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE West Sayville NY
 40.67°N 73.06°W (Elev. 0 ft)
Last Update:
3:11 pm EDT May 4, 2024
Forecast Valid:
3pm EDT May 4, 2024-6pm EDT May 11, 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