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Severe Thunderstorms over the Plains, Heavy Rain Threat Continues over Portions of the Mississippi Valley

Heavy rainfall with localized flooding will remain possible over portions of the Mississippi Valley and the Plains through midweek. In addition, severe thunderstorms will be possible over the southern and central Plains. Some of the storms could contain damaging winds and large hail. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

78°F

26°C

Humidity 42%
Wind Speed SE 7 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Aug 2:56 pm EDT
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 3am.  Increasing clouds, with a low around 71. South wind 7 to 9 mph.

    Partly Cloudy
    then Chance
    Showers

    Low: 71 °F

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 10am. Some of the storms could produce gusty winds and heavy rain.  Cloudy, with a high near 79. South wind 9 to 16 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    High: 79 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely, mainly before midnight.  Cloudy, with a low around 72. South wind 9 to 14 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms
    Likely

    Low: 72 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before noon.  Mostly cloudy, then gradually becoming sunny, with a high near 88. Southwest wind 7 to 9 mph.

    Slight Chance
    T-storms then
    Sunny

    High: 88 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Partly Cloudy

    Low: 72 °F

  • Sunday

    Sunday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 68.

    Mostly Clear

    Low: 68 °F

  • Monday

    Monday: Sunny, with a high near 84.

    Sunny

    High: 84 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 70.

    Mostly Clear

    Low: 70 °F

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 3am. Increasing clouds, with a low around 71. South wind 7 to 9 mph.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 10am. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a high near 79. South wind 9 to 16 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely, mainly before midnight. Cloudy, with a low around 72. South wind 9 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 20 percent chance of showers and thunderstorms before noon. Mostly cloudy, then gradually becoming sunny, with a high near 88. Southwest wind 7 to 9 mph.
Saturday Night
Partly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming northwest after midnight.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Click Map For Forecast
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.81°N 73.11°W (Elev. 98 ft)
12:39 pm EDT Aug 17, 2017
3pm EDT Aug 17, 2017-6pm EDT Aug 24, 2017
 
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