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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.

Partly Cloudy

78°F

26°C

Humidity 33%
Wind Speed W 17 G 26 mph
Barometer 30.11 in (1019.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 28 Jun 1:56 pm EDT
Extended Forecast for

West Sayville NY

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 79. West wind 11 to 13 mph.

    Sunny

    High: 79 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Southwest wind 8 to 13 mph.

    Partly Cloudy

    Low: 63 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon.

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

    High: 80 °F

  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around 69. Breezy, with a southwest wind 16 to 21 mph.

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

    Low: 69 °F

  • Friday

    Friday: Mostly sunny, with a high near 82. Southwest wind 14 to 17 mph.

    Mostly Sunny

    High: 82 °F

  • Friday
    Night

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

    Partly Cloudy

    Low: 69 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    Mostly Sunny

    High: 82 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 70.

    Mostly Cloudy
    then Chance
    T-storms

    Low: 70 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 82.

    Chance
    T-storms

    High: 82 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 79. West wind 11 to 13 mph.
Tonight
Partly cloudy, with a low around 63. Southwest wind 8 to 13 mph.
Thursday
Mostly sunny, with a high near 80. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 69. Breezy, with a southwest wind 16 to 21 mph.
Friday
Mostly sunny, with a high near 82. Southwest wind 14 to 17 mph.
Friday Night
Partly cloudy, with a low around 69.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 70.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 68.
Independence Day
Partly sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
West Sayville NY
 40.74°N 73.1°W (Elev. 30 ft)
10:43 am EDT Jun 28, 2017
2pm EDT Jun 28, 2017-6pm EDT Jul 4, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database