Summer Heat In Multiple Spots

A large dome of high pressure is expected to deliver summer heat with humidity in multiple sections of the country to start off the week. Excessive heat warnings and heat advisories are in effect across the south-central Plains, Mid to Lower Mississippi Valley and from the Mid-Atlantic into the Northeast. This includes the cities of New York, Philadelphia, Dallas, Oklahoma City and Kansas City. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

76°F

24°C

Humidity 100%
Wind Speed SW 8 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index75°F (24°C)
Last update 19 Aug 3:56 am EDT
Extended Forecast for

Hauppauge NY

Heat Advisory until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 19, 08:00pm

    NOW until
    8:00pm Mon

    Heat Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 72. South wind around 5 mph.

    Mostly Cloudy

    Low: 72 °F

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could produce gusty winds and heavy rain.  Partly sunny, with a high near 88. Heat index values as high as 96. South wind 5 to 9 mph.

    Partly Sunny
    then Heavy
    Rain

    High: 88 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Some of the storms could produce gusty winds and heavy rain.  Mostly cloudy, with a low around 71. South wind around 5 mph becoming light and variable  after midnight.

    Heavy Rain

    Low: 71 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 85. North wind 5 to 7 mph becoming southwest in the afternoon.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 85 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. South wind 3 to 7 mph.

    Chance
    T-storms

    Low: 72 °F

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86.

    Chance
    T-storms

    High: 86 °F

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73.

    Chance
    T-storms

    Low: 73 °F

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 85.

    Chance
    T-storms

    High: 85 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. South wind around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could produce gusty winds and heavy rain. Partly sunny, with a high near 88. Heat index values as high as 96. South wind 5 to 9 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Some of the storms could produce gusty winds and heavy rain. Mostly cloudy, with a low around 71. South wind around 5 mph becoming light and variable after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 85. North wind 5 to 7 mph becoming southwest in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind 3 to 7 mph.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Thursday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Mostly sunny, with a high near 80.
Click Map For Forecast
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
3:43 am EDT Aug 19, 2019
4am EDT Aug 19, 2019-6pm EDT Aug 25, 2019
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database