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Flooding and Severe Weather Risk Continues This Weekend

More heavy rain will exacerbate flooding in the central and southern U.S. this weekend. In addition, over portions of the Mississippi, Ohio, and Tennessee Valleys, severe thunderstorms are expected. Some storms may produce large hail, damaging winds, and tornadoes. Meanwhile, snow and ice will again affect the Cascades, northern Rockies, upper Midwest, and New England through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Rain Fog/Mist

43°F

6°C

Humidity 97%
Wind Speed E 17 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 42°F (6°C)
Visibility 4.00 mi
Wind Chill35°F (2°C)
Last update 25 Feb 5:56 am EST
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Today

    Today: Rain, mainly before 5pm.  Patchy fog after 3pm. High near 45. Breezy, with an east wind 16 to 21 mph becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 32 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Rain and
    Patchy Fog

    High: 45 °F

  • Tonight

    Tonight: Patchy fog.  Otherwise, mostly cloudy, with a low around 37. Light northwest wind.

    Patchy Fog

    Low: 37 °F

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 55. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Patchy Fog
    then Sunny

    High: 55 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 32. West wind around 6 mph becoming northwest after midnight.

    Mostly Clear

    Low: 32 °F

  • Tuesday

    Tuesday: Sunny, with a high near 50. Northwest wind 5 to 7 mph becoming southwest in the afternoon.

    Sunny

    High: 50 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 36.

    Mostly Clear

    Low: 36 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52.

    Mostly Sunny

    High: 52 °F

  • Wednesday
    Night

    Wednesday Night: Mostly cloudy, with a low around 35.

    Mostly Cloudy

    Low: 35 °F

  • Thursday

    Thursday: A 50 percent chance of rain.  Mostly cloudy, with a high near 48.

    Chance Rain

    High: 48 °F

Detailed Forecast

Today
Rain, mainly before 5pm. Patchy fog after 3pm. High near 45. Breezy, with an east wind 16 to 21 mph becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 37. Light northwest wind.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 55. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 32. West wind around 6 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 50. Northwest wind 5 to 7 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Mostly sunny, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
Rain likely. Cloudy, with a low around 39. Chance of precipitation is 60%.
Friday
Rain likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 43.
Click Map For Forecast
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.78°N 73.09°W (Elev. 49 ft)
3:35 am EST Feb 25, 2018
6am EST Feb 25, 2018-6pm EST Mar 3, 2018
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database