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Severe Thunderstorms And Heavy Rain Over Portions Of Plains, Mid Atlantic On Friday

Scattered strong-to-severe thunderstorms are possible from the Mid-Missouri Valley into the central Plains on Friday. Also, a few strong-to-severe storms are possible from the Mid-Atlantic into Upstate New York and western New England. Storms in these areas will also be capable of producing torrential rainfall that could lead to isolated flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

78°F

26°C

Humidity 93%
Wind Speed S 13 mph
Barometer 29.81 in (1009.2 mb)
Dewpoint 76°F (24°C)
Visibility 8.00 mi
Heat Index81°F (27°C)
Last update 18 Aug 4:56 pm EDT
Extended Forecast for

Lake Grove NY

  • This
    Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Some of the storms could produce gusty winds and heavy rain.  Cloudy, with a steady temperature around 78. South wind around 14 mph.  Chance of precipitation is 60%.

    Heavy Rain

    High: 78 °F

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before midnight, then showers and thunderstorms likely, mainly between midnight and 2am. Some of the storms could produce gusty winds and heavy rain.  Cloudy, with a low around 72. South wind 9 to 15 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    Low: 72 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms before 9am.  Patchy fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 85. West wind 7 to 10 mph.

    Chance
    T-storms and
    Patchy Fog
    then Mostly
    Sunny

    High: 85 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 69. West wind 5 to 9 mph.

    Partly Cloudy

    Low: 69 °F

  • Sunday

    Sunday: Sunny, with a high near 85. Northwest wind around 8 mph.

    Sunny

    High: 85 °F

  • Sunday
    Night

    Sunday Night: Clear, with a low around 68.

    Clear

    Low: 68 °F

  • Monday

    Monday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 71.

    Mostly Clear

    Low: 71 °F

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    Sunny

    High: 85 °F

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a steady temperature around 78. South wind around 14 mph. Chance of precipitation is 60%.
Tonight
Showers likely and possibly a thunderstorm before midnight, then showers and thunderstorms likely, mainly between midnight and 2am. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a low around 72. South wind 9 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of showers and thunderstorms before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 85. West wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 69. West wind 5 to 9 mph.
Sunday
Sunny, with a high near 85. Northwest wind around 8 mph.
Sunday Night
Clear, with a low around 68.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 85.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 72.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Wednesday Night
Mostly cloudy, with a low around 66.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 78.
Click Map For Forecast
Point Forecast:
Lake Grove NY
 40.85°N 73.1°W (Elev. 144 ft)
3:56 pm EDT Aug 18, 2017
5pm EDT Aug 18, 2017-6pm EDT Aug 25, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database