Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

64°F

18°C

Humidity 35%
Wind Speed SW 13 mph
Barometer 29.93 in (1013.6 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 8 Nov 10:56 am EST
Extended Forecast for

Port Jefferson NY

Red Flag Warning November 8, 11:05am until November 8, 06:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning November 8, 11:05am until November 8, 06:00pm

    NOW until 6:00pm Fri

    Red Flag Warning

  • Today

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Northwest wind 16 to 18 mph, with gusts as high as 28 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 53. Northwest wind around 15 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 5am.  Otherwise, mostly clear, with a low around 38. North wind 5 to 9 mph becoming calm  after midnight.

    Low: 38 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm.  Patchy frost before 8am.  Otherwise, partly sunny, with a high near 59. Light south wind becoming southwest 6 to 11 mph in the morning.

    High: 59 °F

    Patchy Frost
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers.  Low around 52. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Veterans Day

    Veterans Day: A 40 percent chance of showers before 1pm.  Mostly cloudy, then gradually becoming sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 66. West wind 15 to 17 mph.
Tonight
Mostly clear, with a low around 40. Northwest wind 16 to 18 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 53. Northwest wind around 15 mph.
Saturday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 38. North wind 5 to 9 mph becoming calm after midnight.
Sunday
A 20 percent chance of showers after 1pm. Patchy frost before 8am. Otherwise, partly sunny, with a high near 59. Light south wind becoming southwest 6 to 11 mph in the morning.
Sunday Night
Showers. Low around 52. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Veterans Day
A 40 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 44.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 58.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Port Jefferson NY
 40.93°N 73.06°W (Elev. 161 ft)
9:29 am EST Nov 8, 2024
11am EST Nov 8, 2024-6pm EST Nov 14, 2024
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database