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Severe Thunderstorms With Heavy Rain Possible from the Upper Midwest to the Mid-Atlantic; Excessive Heat For Central U.S.

Storms will move from the Upper Great Lakes to the Ohio Valley/Lower Great Lakes into the northern Mid-Atlantic through the day. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat warnings and heat advisories are in place for states in the Central Plains, the Southeast, and the Mid-Atlantic. Localized flash flooding may occur in the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

New York, Kennedy International Airport (KJFK)

Lat: 40.64°NLon: 73.76°WElev: 10ft.

Mostly Cloudy

84°F

29°C

Humidity 59%
Wind Speed NE 6 mph
Barometer 29.89 in (1012.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 22 Jul 8:51 am EDT
Extended Forecast for

Rockville Centre NY

  • Today

    Today: Mostly sunny, with a high near 89. North wind 7 to 13 mph becoming south in the afternoon.

    Mostly Sunny

    High: 89 °F

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 8pm. Some of the storms could produce gusty winds and heavy rain.  Cloudy, with a low around 71. Southeast wind 5 to 7 mph becoming northeast after midnight.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Heavy Rain

    Low: 71 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before noon.  Mostly cloudy, with a high near 82. Northeast wind 9 to 13 mph.

    Chance
    T-storms

    High: 82 °F

  • Sunday
    Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a steady temperature around 76. Southeast wind 7 to 9 mph.

    Chance
    T-storms

    Low: 76 °F

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 82. East wind 5 to 7 mph becoming calm  in the morning.

    Chance
    T-storms

    High: 82 °F

  • Monday
    Night

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

    Chance
    T-storms

    Low: 70 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 66.

    Mostly Clear

    Low: 66 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

Detailed Forecast

Today
Mostly sunny, with a high near 89. North wind 7 to 13 mph becoming south in the afternoon.
Tonight
Showers and thunderstorms likely, mainly after 8pm. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a low around 71. Southeast wind 5 to 7 mph becoming northeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before noon. Mostly cloudy, with a high near 82. Northeast wind 9 to 13 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 76. Southeast wind 7 to 9 mph.
Monday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. East wind 5 to 7 mph becoming calm in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly cloudy, with a low around 70.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Rockville Centre NY
 40.67°N 73.64°W (Elev. 13 ft)
6:14 am EDT Jul 22, 2017
9am EDT Jul 22, 2017-6pm EDT Jul 28, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database