Heavy rain for portions of the Mid-Atlantic and New England through Saturday

A slow-moving weather system in the eastern U.S. will focus showers and thunderstorms across portions of New England and the Mid-Atlantic through Saturday. Abundant moisture will allow occasionally heavy rainfall and flash flooding in these locations. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

83°F

28°C

Humidity 55%
Wind Speed NE 12 mph
Barometer 29.84 in (1010.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 29 Jul 4:56 pm EDT
Extended Forecast for

Sayville NY

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 70. Northeast wind 5 to 8 mph becoming light and variable  after midnight.

    Partly Cloudy
    then Patchy
    Fog

    Low: 70 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Patchy fog before 9am.  Otherwise, partly sunny, with a high near 82. Light and variable wind becoming south 5 to 9 mph in the morning.

    Patchy Fog
    then Chance
    Showers

    High: 82 °F

  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Southeast wind around 6 mph.  Chance of precipitation is 40%.

    Chance
    Showers

    Low: 72 °F

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after noon.  Cloudy, with a high near 79. East wind 8 to 11 mph.  Chance of precipitation is 50%.

    Chance
    Showers then
    Chance
    T-storms

    High: 79 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 71. East wind 5 to 9 mph.

    Chance
    Showers

    Low: 71 °F

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 81.

    Chance
    Showers

    High: 81 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 69.

    Chance
    Showers

    Low: 69 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 69.

    Partly Cloudy

    Low: 69 °F

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 70. Northeast wind 5 to 8 mph becoming light and variable after midnight.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. Light and variable wind becoming south 5 to 9 mph in the morning.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southeast wind around 6 mph. Chance of precipitation is 40%.
Sunday
A chance of showers, with thunderstorms also possible after noon. Cloudy, with a high near 79. East wind 8 to 11 mph. Chance of precipitation is 50%.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 71. East wind 5 to 9 mph.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 71.
Friday
Mostly sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Sayville NY
 40.74°N 73.1°W (Elev. 30 ft)
3:24 pm EDT Jul 29, 2016
5pm EDT Jul 29, 2016-6pm EDT Aug 5, 2016
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database