Severe Storms in the Upper Midwest; Heavy Rain in the Mid-Atlantic; Widespread Heat in the Southwest

Severe storms with damaging winds, large hail, and locally heavy rain will impact portions of the Upper Midwest. A lingering front will bring another round of heavy showers and thunderstorms to the Mid-Atlantic. Excessive heat continues in the South Plains to the Southwest, and fire weather threats remain Critical across the Great Basin, Northern Rockies, and into the Plains. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

76°F

24°C

Humidity 97%
Wind Speed S 6 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint 75°F (24°C)
Visibility 6.00 mi
Heat Index75°F (24°C)
Last update 12 Aug 10:56 pm EDT
Extended Forecast for

Islip NY

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 72. Calm wind.

    Slight Chance
    T-storms

    Low: 72 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms. Some of the storms could produce heavy rain.  Cloudy, with a high near 81. Light and variable wind becoming east around 6 mph.

    Heavy Rain

    High: 81 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Light and variable wind.

    Slight Chance
    T-storms

    Low: 71 °F

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 82. Northeast wind 5 to 10 mph.

    Chance
    Showers

    High: 82 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 69. East wind 7 to 9 mph.

    Partly Cloudy

    Low: 69 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    Mostly Sunny

    High: 81 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 67.

    Partly Cloudy

    Low: 67 °F

  • Sunday

    Sunday: A 30 percent chance of showers.  Partly sunny, with a high near 79.

    Chance
    Showers

    High: 79 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 68.

    Chance
    Showers

    Low: 68 °F

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 81. Light and variable wind becoming east around 6 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Light and variable wind.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Northeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 69. East wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 79.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 68.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly cloudy, with a high near 81.
Click Map For Forecast
Point Forecast:
Islip NY
 40.73°N 73.22°W (Elev. 7 ft)
10:34 pm EDT Aug 12, 2020
11pm EDT Aug 12, 2020-6pm EDT Aug 19, 2020
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database