Heavy to Excessive Rain for Southeast and Mid-Atlantic into this Weekend; High Winds in the Pacific Northwest Friday

Another southern storm system will bring heavy to excessive rainfall with a risk for severe thunderstorms from the central Gulf Coast to the Southeast Friday. This heavy rainfall will then spread across the Mid-Atlantic region late Friday into the Weekend. A strong cold front moving into the Pacific Northwest will bring strong, possibly damaging winds to the coast Friday. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

42°F

6°C

Humidity 89%
Wind Speed E 3 mph
Barometer 30.50 in (1032.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 14 Dec 8:56 am EST
Extended Forecast for

Port Jefferson NY

  • Today

    Today: Patchy drizzle with a slight chance of light rain.  Cloudy, with a high near 50. Southeast wind 7 to 9 mph.

    Patchy
    Drizzle

    High: 50 °F

  • Tonight

    Tonight: Patchy drizzle with a slight chance of light rain before 9pm, then a chance of light rain between 9pm and midnight, then rain likely after midnight.  Cloudy, with a low around 44. South wind 5 to 8 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain Likely

    Low: 44 °F

  • Saturday

    Saturday: Rain likely, mainly before noon.  Cloudy, with a high near 50. East wind 5 to 11 mph becoming northeast in the afternoon.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain Likely
    then Chance
    Rain

    High: 50 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 39. Wind chill values between 30 and 35. Breezy, with a northeast wind 11 to 21 mph.

    Chance Rain
    and Breezy

    Low: 39 °F

  • Sunday

    Sunday: Rain likely.  Mostly cloudy, with a high near 43. Northeast wind 15 to 18 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Rain Likely

    High: 43 °F

  • Sunday
    Night

    Sunday Night: A chance of rain before 3am, then a chance of showers after 3am.  Cloudy, with a low around 36. Chance of precipitation is 50%.

    Chance Rain

    Low: 36 °F

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 44.

    Decreasing
    Clouds

    High: 44 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 30. Blustery.

    Partly Cloudy
    and Blustery

    Low: 30 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. Breezy.

    Mostly Sunny
    and Breezy

    High: 35 °F

Detailed Forecast

Today
Patchy drizzle with a slight chance of light rain. Cloudy, with a high near 50. Southeast wind 7 to 9 mph.
Tonight
Patchy drizzle with a slight chance of light rain before 9pm, then a chance of light rain between 9pm and midnight, then rain likely after midnight. Cloudy, with a low around 44. South wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain likely, mainly before noon. Cloudy, with a high near 50. East wind 5 to 11 mph becoming northeast in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39. Wind chill values between 30 and 35. Breezy, with a northeast wind 11 to 21 mph.
Sunday
Rain likely. Mostly cloudy, with a high near 43. Northeast wind 15 to 18 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain before 3am, then a chance of showers after 3am. Cloudy, with a low around 36. Chance of precipitation is 50%.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 30. Blustery.
Tuesday
Mostly sunny, with a high near 35. Breezy.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 45.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
9:32 am EST Dec 14, 2018
10am EST Dec 14, 2018-6pm EST Dec 20, 2018
 
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