Heavy Rain From East Texas to the Central Gulf Coast; Lower Mississippi Valley

Showers and thunderstorms, heavy at times, are expected from south Texas to the central Gulf coast and the lower Mississippi Valley through the weekend. Heavy rain will also spread into the Pacific and interior Northwest, with snow in the higher elevations of the Cascades. Snow will also impact the northern Great Lakes and northern New England at times. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy and Breezy

47°F

8°C

Humidity 46%
Wind Speed NW 21 G 28 mph
Barometer 29.97 in (1015.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 3 Dec 10:56 am EST
Extended Forecast for

Port Jefferson NY

  • Today

    Today: Sunny, with a steady temperature around 46. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 33 mph.

    Sunny and
    Breezy

    High: 46 °F

  • Tonight

    Tonight: Mostly clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind 10 to 16 mph.

    Mostly Clear

    Low: 31 °F

  • Sunday

    Sunday: Sunny, with a high near 43. Wind chill values between 25 and 35. Northwest wind 8 to 10 mph.

    Sunny

    High: 43 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of snow after 1am.  Increasing clouds, with a low around 32. North wind around 6 mph becoming calm  in the evening.

    Partly Cloudy
    then Chance
    Snow

    Low: 32 °F

  • Monday

    Monday: A chance of snow before 10am, then a chance of rain between 10am and 2pm.  Partly sunny, with a high near 45. Calm wind becoming west 5 to 7 mph in the morning.  Chance of precipitation is 30%.

    Chance
    Rain/Snow
    then Chance
    Rain

    High: 45 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 36.

    Partly Cloudy

    Low: 36 °F

  • Tuesday

    Tuesday: A 30 percent chance of rain after 1pm.  Partly sunny, with a high near 45.

    Partly Sunny
    then Chance
    Rain

    High: 45 °F

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 38.

    Chance Rain

    Low: 38 °F

  • Wednesday

    Wednesday: A 30 percent chance of rain before 10am.  Mostly cloudy, with a high near 47.

    Chance Rain
    then Mostly
    Cloudy

    High: 47 °F

Detailed Forecast

Today
Sunny, with a steady temperature around 46. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind 10 to 16 mph.
Sunday
Sunny, with a high near 43. Wind chill values between 25 and 35. Northwest wind 8 to 10 mph.
Sunday Night
A 40 percent chance of snow after 1am. Increasing clouds, with a low around 32. North wind around 6 mph becoming calm in the evening.
Monday
A chance of snow before 10am, then a chance of rain between 10am and 2pm. Partly sunny, with a high near 45. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 45.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A 30 percent chance of rain before 10am. Mostly cloudy, with a high near 47.
Wednesday Night
A 30 percent chance of rain after 3am. Mostly cloudy, with a low around 38.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 43. Breezy.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
9:38 am EST Dec 3, 2016
11am EST Dec 3, 2016-6pm EST Dec 9, 2016
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database