On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Heavy rain could lead to flash flooding for parts of Upper Midwest, Four Corners region

Showers and thunderstorms are expected across parts of the Upper Midwest on Friday. Heavy rain from these storms could lead to isolated flash flooding. Heavy rainfall could lead to flash flooding across parts of Upper Midwest and Four Corners region. Isolated flash flooding is also possible across parts of the Four Corners region and Desert Southwest. Remember, Turn Around, Don't Drown!
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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

78°F

26°C

Humidity 69%
Wind Speed E 8 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Heat Index80°F (27°C)
Last update 4 Sep 9:56 am EDT
Extended Forecast for

Port Jefferson NY

  • Today

    Today: Mostly cloudy, with a high near 80. Northeast wind around 16 mph.

    Mostly Cloudy

    High: 80 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Northeast wind 9 to 16 mph.

    Partly Cloudy

    Low: 61 °F

  • Saturday

    Saturday: Sunny, with a high near 78. Northeast wind 11 to 13 mph.

    Sunny

    High: 78 °F

  • Saturday
    Night

    Saturday Night: Clear, with a low around 61. South wind 5 to 10 mph becoming light and variable  after midnight.

    Clear

    Low: 61 °F

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming south 5 to 8 mph in the morning.

    Sunny

    High: 84 °F

  • Sunday
    Night

    Sunday Night: Clear, with a low around 63.

    Clear

    Low: 63 °F

  • Labor
    Day

    Labor Day: Sunny, with a high near 87.

    Sunny

    High: 87 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 69.

    Mostly Clear

    Low: 69 °F

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    Sunny

    High: 89 °F

Detailed Forecast

Today
Mostly cloudy, with a high near 80. Northeast wind around 16 mph.
Tonight
Partly cloudy, with a low around 61. Northeast wind 9 to 16 mph.
Saturday
Sunny, with a high near 78. Northeast wind 11 to 13 mph.
Saturday Night
Clear, with a low around 61. South wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 84. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
Clear, with a low around 63.
Labor Day
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Mostly sunny and hot, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Partly sunny, with a high near 86.
  Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
10:00 am EDT Sep 4, 2015
10am EDT Sep 4, 2015-6pm EDT Sep 10, 2015
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database