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Severe Storms; Fire Danger; and Strong Pacific Storms

More strong storms on tap for the Pacific Northwest this weekend. Heavy rains could produce flooding and mudslides. Saturday, a cold front moving into the central U.S. will bring potential for severe thunderstorms containing damaging winds, large hail, and isolated tornadoes; and localized flooding potential. Dry winds in southwestern California will keep fire weather threats high. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

50°F

10°C

Humidity 86%
Wind Speed NW 5 mph
Barometer 30.23 in (1023.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 21 Oct 1:56 am EDT
Extended Forecast for

Port Jefferson NY

  • Overnight

    Overnight: Clear, with a low around 51. North wind around 6 mph.

    Clear

    Low: 51 °F

  • Saturday

    Saturday: Sunny, with a high near 73. Calm wind becoming southwest around 6 mph in the afternoon.

    Sunny

    High: 73 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 54. Southwest wind 3 to 6 mph.

    Mostly Clear

    Low: 54 °F

  • Sunday

    Sunday: Sunny, with a high near 74. Calm wind becoming south 5 to 8 mph in the afternoon.

    Sunny

    High: 74 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 55. South wind around 6 mph.

    Partly Cloudy

    Low: 55 °F

  • Monday

    Monday: Patchy fog before 11am.  Otherwise, partly sunny, with a high near 73.

    Patchy Fog
    then Partly
    Sunny

    High: 73 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers after 3am.  Mostly cloudy, with a low around 61.

    Mostly Cloudy
    then Chance
    Showers

    Low: 61 °F

  • Tuesday

    Tuesday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 72. Chance of precipitation is 70%.

    Showers
    Likely

    High: 72 °F

  • Tuesday
    Night

    Tuesday Night: Showers likely.  Mostly cloudy, with a low around 61. Breezy.  Chance of precipitation is 60%.

    Showers
    Likely and
    Breezy

    Low: 61 °F

Detailed Forecast

Overnight
Clear, with a low around 51. North wind around 6 mph.
Saturday
Sunny, with a high near 73. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 54. Southwest wind 3 to 6 mph.
Sunday
Sunny, with a high near 74. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 55. South wind around 6 mph.
Monday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 73.
Monday Night
A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 61.
Tuesday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 67.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 52.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 62.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 65.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
12:24 am EDT Oct 21, 2017
2am EDT Oct 21, 2017-6pm EDT Oct 27, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database