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Severe Thunderstorms And Heavy Rain Over Portions Of Plains, Mid Atlantic On Friday

Scattered strong-to-severe thunderstorms are possible from the Mid-Missouri Valley into the central Plains on Friday. Also, a few strong-to-severe storms are possible from the Mid-Atlantic into Upstate New York and western New England. Storms in these areas will also be capable of producing torrential rainfall that could lead to isolated flash flooding. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

75°F

24°C

Humidity 96%
Wind Speed S 6 mph
Barometer 29.93 in (1013.3 mb)
Dewpoint 74°F (23°C)
Visibility 8.00 mi
Last update 18 Aug 3:56 am EDT
Extended Forecast for

Port Jefferson NY

  • Overnight

    Overnight: A 20 percent chance of showers.  Cloudy, with a low around 71. South wind around 9 mph.

    Slight Chance
    Showers

    Low: 71 °F

  • Friday

    Friday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and noon, then a chance of showers and thunderstorms after noon. Some of the storms could produce gusty winds and heavy rain.  Cloudy, with a high near 81. South wind 11 to 15 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    High: 81 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely, mainly before 2am. Some of the storms could produce gusty winds and heavy rain.  Cloudy, with a low around 73. South wind 9 to 14 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    Low: 73 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before noon.  Patchy fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. West wind around 9 mph.

    Chance
    T-storms and
    Patchy Fog

    High: 86 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 68. West wind around 9 mph.

    Decreasing
    Clouds

    Low: 68 °F

  • Sunday

    Sunday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 68.

    Mostly Clear

    Low: 68 °F

  • Monday

    Monday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 71.

    Mostly Clear

    Low: 71 °F

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 71. South wind around 9 mph.
Friday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and noon, then a chance of showers and thunderstorms after noon. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a high near 81. South wind 11 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely, mainly before 2am. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a low around 73. South wind 9 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before noon. Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. West wind around 9 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 68. West wind around 9 mph.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 72.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
Sunny, with a high near 80.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
3:51 am EDT Aug 18, 2017
4am EDT Aug 18, 2017-6pm EDT Aug 24, 2017
 
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