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Heavy rain possible over parts of the Southeast through the weekend

Unsettled weather will continue through the rest of the work week from the lower Mississippi Valley to the Southeast/Florida and the southern Mid-Atlantic, with scattered showers and thunderstorms that may contain moderate to heavy rainfall continuing to pop up. Locally heavy rainfall is possible over much of Florida and the northern Gulf Coast during the weekend. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

76°F

24°C

Humidity 25%
Wind Speed N 9 G 20 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 24 May 11:56 am EDT
Extended Forecast for

Port Jefferson NYSimilar City Names

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 77. North wind around 9 mph becoming west.

    Sunny

    High: 77 °F

  • Tonight

    Tonight: Clear, with a low around 57. South wind 5 to 9 mph becoming light southwest.

    Clear

    Low: 57 °F

  • Friday

    Friday: Sunny, with a high near 80. Southwest wind 8 to 16 mph.

    Sunny

    High: 80 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 64. Southwest wind around 11 mph.

    Mostly Clear

    Low: 64 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Southwest wind 9 to 11 mph.

    Mostly Sunny

    High: 81 °F

  • Saturday
    Night

    Saturday Night: A 50 percent chance of showers and thunderstorms after 10pm.  Mostly cloudy, with a low around 62.

    Chance
    T-storms

    Low: 62 °F

  • Sunday

    Sunday: A 50 percent chance of showers.  Mostly cloudy, with a high near 66.

    Chance
    Showers

    High: 66 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers.  Cloudy, with a low around 57.

    Chance
    Showers

    Low: 57 °F

  • Memorial
    Day

    Memorial Day: A 30 percent chance of showers.  Mostly cloudy, with a high near 63.

    Chance
    Showers

    High: 63 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 77. North wind around 9 mph becoming west.
Tonight
Clear, with a low around 57. South wind 5 to 9 mph becoming light southwest.
Friday
Sunny, with a high near 80. Southwest wind 8 to 16 mph.
Friday Night
Mostly clear, with a low around 64. Southwest wind around 11 mph.
Saturday
Mostly sunny, with a high near 81. Southwest wind 9 to 11 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 62.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 66.
Sunday Night
A 30 percent chance of showers. Cloudy, with a low around 57.
Memorial Day
A 30 percent chance of showers. Mostly cloudy, with a high near 63.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 73.
Click Map For Forecast
Point Forecast:
Port Jefferson NYSimilar City Names
 40.95°N 73.05°W (Elev. 151 ft)
12:33 pm EDT May 24, 2018
12pm EDT May 24, 2018-6pm EDT May 30, 2018
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database