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Heavy snow in the Rockies, Fire weather threat in the Southwest, and Heavy rainfall threat for the weekend in the Southern Plains into the Ohio Valley

Heavy snow is expected in the northern and central Rockies. There is a critical to elevated fire risk across the Southwest. A few severe storms are expected from the Southeast States into the Great Lakes and portions of the Central Plains on Thursday. Heavy rainfall is forecast through the weekend with a threat for significant flooding for the Southern Plains into the Mississippi Valley Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

65°F

18°C

Humidity 76%
Wind Speed S 10 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 27 Apr 12:56 pm EDT
Extended Forecast for

Port Jefferson NY

  • This
    Afternoon

    This Afternoon: Mostly cloudy, with a high near 67. South wind around 8 mph.

    Mostly Cloudy

    High: 67 °F

  • Tonight

    Tonight: Patchy drizzle before 9pm, then a slight chance of showers between 9pm and 3am, then a chance of showers and thunderstorms after 3am.  Patchy fog.  Otherwise, mostly cloudy, with a low around 56. Southeast wind around 8 mph.  Chance of precipitation is 30%.

    Chance
    Showers and
    Patchy Fog

    Low: 56 °F

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before noon.  Areas of fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 6 to 10 mph.

    Chance
    Showers and
    Areas Fog
    then Mostly
    Sunny

    High: 72 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 56. South wind 5 to 8 mph.

    Partly Cloudy

    Low: 56 °F

  • Saturday

    Saturday: Partly sunny, with a high near 76. South wind 7 to 11 mph.

    Partly Sunny

    High: 76 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Mostly Cloudy

    Low: 54 °F

  • Sunday

    Sunday: Partly sunny, with a high near 61.

    Partly Sunny

    High: 61 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers after 11pm.  Mostly cloudy, with a low around 49.

    Chance
    Showers

    Low: 49 °F

  • Monday

    Monday: A 30 percent chance of showers.  Mostly cloudy, with a high near 68.

    Chance
    Showers

    High: 68 °F

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 67. South wind around 8 mph.
Tonight
Patchy drizzle before 9pm, then a slight chance of showers between 9pm and 3am, then a chance of showers and thunderstorms after 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 56. Southeast wind around 8 mph. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms before noon. Areas of fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 56. South wind 5 to 8 mph.
Saturday
Partly sunny, with a high near 76. South wind 7 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Partly sunny, with a high near 61.
Sunday Night
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 49.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 68.
Monday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 65.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
2:16 pm EDT Apr 27, 2017
2pm EDT Apr 27, 2017-6pm EDT May 3, 2017
 
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Additional Resources

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