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

26°C

78°F

Humidity 79%
Wind Speed S 11 km/h
Barometer 999.5 mb (29.52 in)
Dewpoint 22°C (71°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 6 Jun 2:56 pm EDT
Extended Forecast for

Port Jefferson Station NY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 26. Southwest wind around 11 km/h. Chance of precipitation is 60%.

    High: 26 °C

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 18. Southwest wind 8 to 13 km/h. Chance of precipitation is 60%.

    Low: 18 °C

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 27. Northwest wind 8 to 14 km/h becoming southwest in the afternoon.

    High: 27 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 16. West wind 14 to 18 km/h.

    Low: 16 °C

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 26. West wind 16 to 21 km/h.

    High: 26 °C

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17.

    Low: 17 °C

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers. Partly sunny, with a high near 26.

    High: 26 °C

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16.

    Low: 16 °C

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 25.

    High: 25 °C

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 26. Southwest wind around 11 km/h. Chance of precipitation is 60%.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 18. Southwest wind 8 to 13 km/h. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 27. Northwest wind 8 to 14 km/h becoming southwest in the afternoon.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 16. West wind 14 to 18 km/h.
Saturday
Sunny, with a high near 26. West wind 16 to 21 km/h.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Sunny, with a high near 24.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Mostly sunny, with a high near 26.
Wednesday Night
Partly cloudy, with a low around 17.
Thursday
A chance of showers. Mostly sunny, with a high near 27.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Port Jefferson Station NY
 40.93°N 73.06°W (Elev. 161 m)
Last Update:
3:10 pm EDT Jun 6, 2024
Forecast Valid:
3pm EDT Jun 6, 2024-6pm EDT Jun 13, 2024
 
Forecast Discussion
 
Get as KML Get as XML

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