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Severe thunderstorms possible from the central Plains to the upper Midwest

Severe thunderstorms containing damaging winds, large hail, heavy rainfall, and a few isolated tornadoes will be possible this afternoon into tonight from the central Plains to the upper Midwest. The threat is expected to shift east into the Great Lakes region by Friday. In addition, heavy rainfall could cause localized flooding concerns. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

26°C

78°F

Humidity 35%
Wind Speed W 22 km/h
Barometer 1018.9 mb (30.09 in)
Dewpoint 9°C (48°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 28 Jun 2:56 pm EDT
Extended Forecast for

West Sayville NY

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Southwest wind 11 to 21 km/h.

    Partly Cloudy

    Low: 17 °C

  • Thursday

    Thursday: Mostly sunny, with a high near 27. Breezy, with a south wind 13 to 23 km/h increasing to 25 to 35 km/h in the afternoon. Winds could gust as high as 60 km/h.

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

    High: 27 °C

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 18. Breezy, with a southwest wind 24 to 34 km/h.

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

    Low: 18 °C

  • Friday

    Friday: Mostly sunny, with a high near 28. Southwest wind 23 to 27 km/h.

    Mostly Sunny

    High: 28 °C

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 21. Southwest wind 18 to 27 km/h.

    Partly Cloudy

    Low: 21 °C

  • Saturday

    Saturday: Mostly sunny, with a high near 28.

    Mostly Sunny

    High: 28 °C

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 21.

    Partly Cloudy
    then Chance
    T-storms

    Low: 21 °C

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 28.

    Chance
    T-storms

    High: 28 °C

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 21.

    Partly Cloudy

    Low: 21 °C

Detailed Forecast

Tonight
Partly cloudy, with a low around 17. Southwest wind 11 to 21 km/h.
Thursday
Mostly sunny, with a high near 27. Breezy, with a south wind 13 to 23 km/h increasing to 25 to 35 km/h in the afternoon. Winds could gust as high as 60 km/h.
Thursday Night
Partly cloudy, with a low around 18. Breezy, with a southwest wind 24 to 34 km/h.
Friday
Mostly sunny, with a high near 28. Southwest wind 23 to 27 km/h.
Friday Night
Partly cloudy, with a low around 21. Southwest wind 18 to 27 km/h.
Saturday
Mostly sunny, with a high near 28.
Saturday Night
A 30 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 21.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 28.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 20.
Independence Day
Mostly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 26.
Click Map For Forecast
Point Forecast:
West Sayville NY
 40.74°N 73.1°W (Elev. 9 m)
3:10 pm EDT Jun 28, 2017
3pm EDT Jun 28, 2017-6pm EDT Jul 5, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database