Heavy Rain In The Plains; Poor Air Quality Out West

A slow moving system in the central U.S. will bring a renewed period of locally heavy rain this weekend across much of the Plains. Isolated flash flooding is possible in this area. Meanwhile, smoke from ongoing wildfires will continue to cause poor air quality for much of the interior West, although fire weather conditions are generally improving in this region. Read More >

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

79°F

26°C

Humidity 90%
Wind Speed S 14 G 25 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Aug 7:56 pm EDT
Extended Forecast for

Lake Grove NY

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Some of the storms could produce gusty winds and heavy rain.  Cloudy, with a low around 74. South wind 9 to 15 mph.

    Heavy Rain

    Low: 74 °F

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms.  Patchy fog before 2pm.  Otherwise, mostly cloudy, with a high near 86. West wind around 10 mph.

    Chance
    T-storms and
    Patchy Fog

    High: 86 °F

  • Saturday
    Night

    Saturday Night: Showers and thunderstorms likely before 2am, then a chance of showers.  Mostly cloudy, with a low around 69. Northwest wind 8 to 10 mph becoming northeast after midnight.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely

    Low: 69 °F

  • Sunday

    Sunday: A 50 percent chance of showers.  Cloudy, with a high near 73. Northeast wind around 14 mph.

    Chance
    Showers

    High: 73 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers.  Cloudy, with a low around 67. Northeast wind around 11 mph.

    Chance
    Showers

    Low: 67 °F

  • Monday

    Monday: Mostly cloudy, with a high near 76.

    Mostly Cloudy

    High: 76 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 67.

    Mostly Cloudy

    Low: 67 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 80.

    Partly Sunny

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: Showers likely, mainly after 2am.  Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 71 °F

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a low around 74. South wind 9 to 15 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Patchy fog before 2pm. Otherwise, mostly cloudy, with a high near 86. West wind around 10 mph.
Saturday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 69. Northwest wind 8 to 10 mph becoming northeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 50 percent chance of showers. Cloudy, with a high near 73. Northeast wind around 14 mph.
Sunday Night
A 40 percent chance of showers. Cloudy, with a low around 67. Northeast wind around 11 mph.
Monday
Mostly cloudy, with a high near 76.
Monday Night
Mostly cloudy, with a low around 67.
Tuesday
Partly sunny, with a high near 80.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Sunny, with a high near 82.
Click Map For Forecast
Point Forecast:
Lake Grove NY
 40.85°N 73.1°W (Elev. 144 ft)
6:04 pm EDT Aug 17, 2018
8pm EDT Aug 17, 2018-6pm EDT Aug 24, 2018
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database