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

58°F

14°C

Humidity 60%
Wind Speed SE 15 mph
Barometer 30.32 in (1026.8 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 4 May 1:56 pm EDT
Extended Forecast for

West Sayville NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 58. East wind around 11 mph.

    High: 58 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 46. East wind around 10 mph.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers, mainly after 2pm. Cloudy, with a high near 56. Southeast wind 9 to 11 mph.

    High: 56 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 8pm. Cloudy, with a steady temperature around 53. Southeast wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers, mainly before 11am. Cloudy, with a high near 66. Southwest wind around 9 mph.

    High: 66 °F

    Chance
    Showers

  • Monday Night

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

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 58. East wind around 11 mph.
Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 46. East wind around 10 mph.
Sunday
A 50 percent chance of showers, mainly after 2pm. Cloudy, with a high near 56. Southeast wind 9 to 11 mph.
Sunday Night
Showers likely, mainly after 8pm. Cloudy, with a steady temperature around 53. Southeast wind around 10 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, mainly before 11am. Cloudy, with a high near 66. Southwest wind around 9 mph.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 52.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 65.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 62.
Thursday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
West Sayville NY
 40.74°N 73.1°W (Elev. 30 ft)
Last Update:
1:01 pm EDT May 4, 2024
Forecast Valid:
2pm EDT May 4, 2024-6pm EDT May 10, 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