• Today

    Dec 19

    40°Lo 29°

    Clouds yielding to some sun

    Good for home energy
    • Avg
      RealFeel
      26°
    • Hi
      RealFeel
      30°
    • Wind
      Speed
      13 mph
    more
  • Sat

    Dec 20

    38°Lo 32°

    Variable clouds

    Good for home energy
    • Avg
      RealFeel
      33°
    • Hi
      RealFeel
      38°
    • Wind
      Speed
      6 mph
  • Sun

    Dec 21

    41°Lo 34°

    Times of clouds and sun

    Fair for home energy
    • Avg
      RealFeel
      35°
    • Hi
      RealFeel
      40°
    • Wind
      Speed
      6 mph
    more
  • Mon

    Dec 22

    46°Lo 42°

    Mostly cloudy, afternoon rain

    Fair for home energy
    • Avg
      RealFeel
      33°
    • Hi
      RealFeel
      35°
    • Wind
      Speed
      10 mph
    more
  • Tue

    Dec 23

    49°Lo 46°

    Cloudy, a little rain; breezy

    Fair for home energy
    • Avg
      RealFeel
      36°
    • Hi
      RealFeel
      37°
    • Wind
      Speed
      17 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Mostly Clear
Mostly Clear
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 29° 29° 31° 32° 33° 34° 36° 36°
RealFeel® 22° 23° 25° 26° 28° 31° 34° 36°
Humidity 69% 68% 67% 64% 61% 58% 56% 54%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
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  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 7 N 7 N 7 N 7 N 7 N 7 NNE 6 NNE 6 NNE
UV Index 0 0 0 0 0 1 1 1
Cloud Cover 26% 26% 70% 70% 70% 70% 70% 70%
Dew Point 20° 20° 21° 21° 21° 21° 21° 21°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High 38° 43° 57° (1999) 51°
Low 32° 30° 12° (2004) 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:14 AM with 9:16 of sunlight, then sets at 4:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:27 AM with 10:13 of moolight, then sets at 3:40 PM

Rockville Centre Weather Report

NYC: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 19, 2014; 4:01 PM ET

Following benign weather this weekend, a major storm will affect New York City, much of the East and Midwest on Christmas Eve. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Sat. Home Energy Efficiency

Sat. Degree Days

Sat. UV Index