Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

81°F

27°C

Humidity 58%
Wind Speed W 13 mph
Barometer 29.83 in (1009.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 23 Jul 6:56 am EDT
Extended Forecast for

Stony Brook NY

  • Today

    Today: Sunny and hot, with a high near 95. West wind 8 to 16 mph.

    Hot

    High: 95 °F

  • Tonight

    Tonight: Mostly clear, with a low around 71. Northwest wind 5 to 9 mph becoming light  after midnight.

    Mostly Clear

    Low: 71 °F

  • Sunday

    Sunday: Sunny, with a high near 89. Northwest wind 5 to 9 mph becoming west in the afternoon.

    Sunny

    High: 89 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 74. South wind 5 to 8 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 74 °F

  • Monday

    Monday: Mostly sunny, with a high near 93. Southwest wind 5 to 10 mph.

    Mostly Sunny

    High: 93 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly between 7pm and 4am.  Mostly cloudy, with a low around 75.

    Chance
    T-storms

    Low: 75 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    Mostly Sunny

    High: 93 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 73.

    Mostly Clear

    Low: 73 °F

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    Sunny

    High: 88 °F

Detailed Forecast

Today
Sunny and hot, with a high near 95. West wind 8 to 16 mph.
Tonight
Mostly clear, with a low around 71. Northwest wind 5 to 9 mph becoming light after midnight.
Sunday
Sunny, with a high near 89. Northwest wind 5 to 9 mph becoming west in the afternoon.
Sunday Night
Partly cloudy, with a low around 74. South wind 5 to 8 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 93. Southwest wind 5 to 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly between 7pm and 4am. Mostly cloudy, with a low around 75.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 72.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Click Map For Forecast
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
5:57 am EDT Jul 23, 2016
7am EDT Jul 23, 2016-6pm EDT Jul 29, 2016
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database