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Severe Thunderstorms and Locally Heavy Rain Today

Severe thunderstorms and locally heavy rain are possible today from the southern plains to the Ohio valley and Mid-Atlantic. Elsewhere, hot temperatures are expected to persist for the interior Pacific Northwest. Elevated to critical fire weather conditions will occur in northeast Montana. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

64°F

18°C

Humidity 78%
Wind Speed S 8 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 28 May 8:56 am EDT
Extended Forecast for

Islip NY

  • Today

    Today: Partly sunny, with a high near 63. South wind 5 to 11 mph.

    Partly Sunny

    High: 63 °F

  • Tonight

    Tonight: A 30 percent chance of light rain, mainly after 4am.  Mostly cloudy, with a low around 55. Southeast wind 11 to 14 mph.

    Mostly Cloudy
    then Chance
    Light Rain

    Low: 55 °F

  • Memorial
    Day

    Memorial Day: Showers and thunderstorms, mainly before 2pm.  High near 63. Southeast wind 7 to 17 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Showers

    High: 63 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 55. Northeast wind 3 to 7 mph.

    Mostly Cloudy

    Low: 55 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 70. Southeast wind 5 to 10 mph.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 70 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers between 7pm and 10pm.  Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Chance
    Showers then
    Mostly Cloudy

    Low: 59 °F

  • Wednesday

    Wednesday: Partly sunny, with a high near 76.

    Partly Sunny

    High: 76 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Partly Cloudy

    Low: 59 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    Mostly Sunny

    High: 73 °F

Detailed Forecast

Today
Partly sunny, with a high near 63. South wind 5 to 11 mph.
Tonight
A 30 percent chance of light rain, mainly after 4am. Mostly cloudy, with a low around 55. Southeast wind 11 to 14 mph.
Memorial Day
Showers and thunderstorms, mainly before 2pm. High near 63. Southeast wind 7 to 17 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Mostly cloudy, with a low around 55. Northeast wind 3 to 7 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 70. Southeast wind 5 to 10 mph.
Tuesday Night
A chance of showers between 7pm and 10pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 72.
Click Map For Forecast
Point Forecast:
Islip NY
 40.73°N 73.22°W (Elev. 7 ft)
3:17 am EDT May 28, 2017
9am EDT May 28, 2017-6pm EDT Jun 3, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database