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

66°F

19°C

Humidity 75%
Wind Speed SW 13 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 21 May 6:56 pm EDT
Extended Forecast for

Saint James NY

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind 5 to 10 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. South wind 6 to 14 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 60. South wind 5 to 11 mph.

    Low: 60 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 82. Southwest wind 6 to 9 mph.

    High: 82 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind 3 to 7 mph.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 57. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 79. South wind 6 to 14 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 60. South wind 5 to 11 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 82. Southwest wind 6 to 9 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind 3 to 7 mph.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 58.
Saturday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 74.
Saturday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 57.
Memorial Day
A 40 percent chance of showers. Mostly cloudy, with a high near 72.
Monday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint James NY
 40.88°N 73.16°W (Elev. 148 ft)
Last Update:
6:21 pm EDT May 21, 2024
Forecast Valid:
7pm EDT May 21, 2024-6pm EDT May 28, 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