Heavy Rain In The Plains; Poor Air Quality Out West

A slow moving weather system in the central U.S. will bring locally heavy rain to much of the Plains this weekend. Isolated flash flooding is possible in this area. Meanwhile, smoke from ongoing wildfires will continue to cause poor air quality across much of the interior West, although fire weather conditions are generally improving in this region. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain

24°C

76°F

Humidity 91%
Wind Speed Calm
Barometer 1013.6 mb (29.94 in)
Dewpoint 23°C (73°F)
Visibility 16 km
Heat Index24°C (76°F)
Last update 17 Aug 11:56 pm EDT
Extended Forecast for

West Sayville NY

  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms.  Cloudy, with a low around 24. Southwest wind 16 to 18 km/h.

    Chance
    T-storms

    Low: 24 °C

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 29. West wind 14 to 18 km/h.

    Chance
    T-storms

    High: 29 °C

  • Saturday
    Night

    Saturday Night: Showers and thunderstorms likely between 9pm and 2am, then a chance of showers.  Mostly cloudy, with a low around 21. West wind 11 to 14 km/h becoming northeast after midnight.  Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.

    T-storms
    Likely

    Low: 21 °C

  • Sunday

    Sunday: A 50 percent chance of showers.  Cloudy, with a high near 23. Northeast wind 21 to 23 km/h.

    Chance
    Showers

    High: 23 °C

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers.  Cloudy, with a low around 19. Northeast wind 16 to 18 km/h.

    Chance
    Showers

    Low: 19 °C

  • Monday

    Monday: Mostly cloudy, with a high near 25.

    Mostly Cloudy

    High: 25 °C

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 20.

    Partly Cloudy

    Low: 20 °C

  • Tuesday

    Tuesday: Partly sunny, with a high near 27.

    Partly Sunny

    High: 27 °C

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of showers after 8pm.  Mostly cloudy, with a low around 22.

    Chance
    Showers

    Low: 22 °C

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 24. Southwest wind 16 to 18 km/h.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 29. West wind 14 to 18 km/h.
Saturday Night
Showers and thunderstorms likely between 9pm and 2am, then a chance of showers. Mostly cloudy, with a low around 21. West wind 11 to 14 km/h becoming northeast after midnight. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.
Sunday
A 50 percent chance of showers. Cloudy, with a high near 23. Northeast wind 21 to 23 km/h.
Sunday Night
A 40 percent chance of showers. Cloudy, with a low around 19. Northeast wind 16 to 18 km/h.
Monday
Mostly cloudy, with a high near 25.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
A 50 percent chance of showers after 8pm. Mostly cloudy, with a low around 22.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 21.
Thursday
Mostly sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Sunny, with a high near 27.
Click Map For Forecast
Point Forecast:
West Sayville NY
 40.74°N 73.1°W (Elev. 9 m)
9:53 pm EDT Aug 17, 2018
1am EDT Aug 18, 2018-6pm EDT Aug 24, 2018
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database