Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy Rain, Flooding Possible From Remnants of Tropical Storm Cindy

The remnants of Tropical Storm Cindy will spread heavy rain into the Tennessee and Ohio Valleys today - and into the Appalachians and Mid-Atlantic tonight. Flash flooding is possible in these areas. Strong to severe thunderstorms are also possible in these areas. Flash flooding is life threatening. Never drive your car across flooded roadways. Read More >

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

78°F

26°C

Humidity 85%
Wind Speed SW 8 mph
Barometer 29.81 in (1009.2 mb)
Dewpoint 73°F (23°C)
Visibility 8.00 mi
Heat Index80°F (27°C)
Last update 23 Jun 9:56 am EDT
Extended Forecast for

4 Miles SSW Bellport NY

  • Today

    Today: Scattered showers and thunderstorms before 3pm.  Mostly cloudy, with a high near 71. Southwest wind 14 to 16 mph.  Chance of precipitation is 50%.

    Scattered
    Showers

    High: 71 °F

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 10pm. Some of the storms could produce gusty winds.  Mostly cloudy, with a low around 70. Southwest wind 15 to 17 mph.

    Chance
    T-storms

    Low: 70 °F

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Some of the storms could produce heavy rain.  Mostly cloudy, with a high near 77. Southwest wind 11 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Heavy Rain

    High: 77 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 64. West wind 5 to 10 mph becoming light northwest  after midnight.

    Partly Cloudy

    Low: 64 °F

  • Sunday

    Sunday: A 20 percent chance of showers after 2pm.  Sunny, with a high near 76. Southwest wind 5 to 10 mph.

    Sunny then
    Slight Chance
    Showers

    High: 76 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 62.

    Mostly Clear

    Low: 62 °F

  • Monday

    Monday: Sunny, with a high near 76.

    Sunny

    High: 76 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 60.

    Partly Cloudy

    Low: 60 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 75.

    Partly Sunny

    High: 75 °F

Detailed Forecast

Today
Scattered showers and thunderstorms before 3pm. Mostly cloudy, with a high near 71. Southwest wind 14 to 16 mph. Chance of precipitation is 50%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 10pm. Some of the storms could produce gusty winds. Mostly cloudy, with a low around 70. Southwest wind 15 to 17 mph.
Saturday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 77. Southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Partly cloudy, with a low around 64. West wind 5 to 10 mph becoming light northwest after midnight.
Sunday
A 20 percent chance of showers after 2pm. Sunny, with a high near 76. Southwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Partly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 77.
Click Map For Forecast
Point Forecast:
4 Miles SSW Bellport NY
 40.7°N 72.96°W (Elev. 0 ft)
7:43 am EDT Jun 23, 2017
10am EDT Jun 23, 2017-6pm EDT Jun 29, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database