Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Hurricane Maria Forecast To Bring Impacts To East Coast

Hurricane Maria will approach the Mid-Atlantic coast early this week then finally shove eastward into the open Atlantic. Maria will likely not make landfall but will come close to portions of North Carolina midweek and could bring tropical storm force winds, locally heavy rain, storm surge, and very rough surf. Maria will create hazardous surf and rip currents for much of the East Coast this week. Read More >

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 72%
Wind Speed SE 6 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 26 Sep 12:56 pm EDT
Extended Forecast for

Stony Brook NY

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 77. East wind around 6 mph.

    Sunny

    High: 77 °F

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 67. Southeast wind around 6 mph becoming calm  in the evening.

    Partly Cloudy
    then Patchy
    Fog

    Low: 67 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 78. Northeast wind 6 to 8 mph.

    Patchy Fog
    then Slight
    Chance
    Showers

    High: 78 °F

  • Wednesday
    Night

    Wednesday Night: A slight chance of showers before 7pm, then a slight chance of showers after 1am.  Mostly cloudy, with a low around 65. East wind 5 to 7 mph.  Chance of precipitation is 20%.

    Mostly Cloudy
    then Slight
    Chance
    Showers

    Low: 65 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 79. North wind 11 to 14 mph.

    Mostly Sunny

    High: 79 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 54.

    Mostly Clear

    Low: 54 °F

  • Friday

    Friday: Sunny, with a high near 70.

    Sunny

    High: 70 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 54.

    Partly Cloudy

    Low: 54 °F

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    Partly Sunny

    High: 67 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 77. East wind around 6 mph.
Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 67. Southeast wind around 6 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. Northeast wind 6 to 8 mph.
Wednesday Night
A slight chance of showers before 7pm, then a slight chance of showers after 1am. Mostly cloudy, with a low around 65. East wind 5 to 7 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 79. North wind 11 to 14 mph.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 71.
Click Map For Forecast
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
12:00 pm EDT Sep 26, 2017
1pm EDT Sep 26, 2017-6pm EDT Oct 2, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database