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News

Severe weather possible across parts of eastern U.S.

Scattered strong to severe thunderstorms will occur into early Tuesday morning from the mid-Atlantic to the Carolinas. Other strong to severe thunderstorms will persist over a portion of central and southern Florida.
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Current Conditions

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Light Rain Fog

52°F

11°C

Humidity 97%
Wind Speed Calm
Barometer 29.55 in (1000.7 mb)
Dewpoint 51°F (11°C)
Visibility 0.13 mi
Last update on 21 Apr 5:56 am EDT

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°N Lon: 73.1°W Elev: 98ft.

For More Weather Information:

New York, NY Local Forecast Office

Holtsville NY

7 Day Forecast

  • Today

    Heavy Rain Chance for Measurable Precipitation 50%

    Heavy
    Rain

    High: 64 °F

  • Tonight

    Mostly Clear

    Mostly
    Clear

    Low: 44 °F

  • Wednesday

    Showers Likely Chance for Measurable Precipitation 60%

    Showers
    Likely

    High: 62 °F

  • Wednesday
    Night

    Chance Showers Chance for Measurable Precipitation 30%

    Chance
    Showers

    Low: 40 °F

  • Thursday

    Mostly Cloudy

    Mostly
    Cloudy

    High: 54 °F

  • Thursday
    Night

    Partly Cloudy

    Partly
    Cloudy

    Low: 39 °F

  • Friday

    Mostly Sunny

    Mostly
    Sunny

    High: 55 °F

  • Friday
    Night

    Partly Cloudy

    Partly
    Cloudy

    Low: 40 °F

  • Saturday

    Mostly Sunny

    Mostly
    Sunny

    High: 58 °F

Detailed Forecast

Today
A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon. Some of the storms could produce heavy rain. Mostly cloudy, then gradually becoming sunny, with a high near 64. West wind 10 to 15 mph. Chance of precipitation is 50%.
Tonight
Mostly clear, with a low around 44. Southwest wind around 10 mph.
Wednesday
Showers likely, mainly after 4pm. Partly sunny, with a high near 62. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 40. Southwest wind 13 to 16 mph becoming west after midnight. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 54. West wind around 18 mph.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 60.

ABOUT THIS FORECAST

Point Forecast: Holtsville NY
 40.82°N 73.05°W
Last Update: 4:00 am EDT Apr 21, 2015
Forecast Valid: 7am EDT Apr 21, 2015-6pm EDT Apr 27, 2015
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