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Cold Front Slowly Moves East On Sunday

A slow moving cold front is cutting through the Central U.S today. Behind the cold front, unseasonably cold weather and high elevation snow is occurring. Ahead of the front, temperatures are more typical of mid-summer running 15 to 20 degrees above normal with some daily records expected. The front separating these extremes will be the focal point for locally heavy rain. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

86°F

30°C

Humidity 48%
Wind Speed N 5 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 24 Sep 12:56 pm EDT
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 89. East wind 5 to 7 mph.

    Sunny

    High: 89 °F

  • Tonight

    Tonight: Patchy fog after midnight.  Otherwise, mostly clear, with a low around 65. Light and variable wind.

    Mostly Clear
    then Patchy
    Fog

    Low: 65 °F

  • Monday

    Monday: Sunny, with a high near 82. East wind 3 to 8 mph.

    Sunny

    High: 82 °F

  • Monday
    Night

    Monday Night: Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 67. East wind 3 to 6 mph.

    Partly Cloudy
    then Patchy
    Fog

    Low: 67 °F

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 78. Northeast wind around 6 mph.

    Patchy Fog
    then Partly
    Sunny

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 65.

    Mostly Cloudy

    Low: 65 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers.  Mostly cloudy, with a high near 77.

    Chance
    Showers

    High: 77 °F

  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 66.

    Chance
    Showers

    Low: 66 °F

  • Thursday

    Thursday: A 30 percent chance of showers before noon.  Partly sunny, with a high near 77.

    Chance
    Showers then
    Partly Sunny

    High: 77 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 89. East wind 5 to 7 mph.
Tonight
Patchy fog after midnight. Otherwise, mostly clear, with a low around 65. Light and variable wind.
Monday
Sunny, with a high near 82. East wind 3 to 8 mph.
Monday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. East wind 3 to 6 mph.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 78. Northeast wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 77.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers before noon. Partly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 54.
Saturday
Mostly sunny, with a high near 69.
Click Map For Forecast
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.78°N 73.09°W (Elev. 49 ft)
12:23 pm EDT Sep 24, 2017
1pm EDT Sep 24, 2017-6pm EDT Sep 30, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database