• Today

    Apr 21

    65°Lo 51°

    Warmer; rain this morning

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Wed

    Apr 22

    63°Lo 44°

    Afternoon showers

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Thu

    Apr 23

    58°Lo 45°

    Partly sunny and breezy

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    Apr 24

    60°Lo 47°

    Times of clouds and sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Apr 25

    63°Lo 48°

    Times of clouds and sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
T-storms
T-storms
Cloudy
T-storms
T-storms
T-storms
Cloudy
Rain
Temp (°F) 55° 54° 54° 53° 52° 51° 57° 58°
RealFeel® 48° 49° 52° 51° 51° 46° 55° 54°
Humidity 93% 93% 93% 92% 92% 93% 79% 73%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
56%
 
58%
 
49%
 
57%
 
57%
 
61%
 
47%
 
55%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 8 SSW 7 WNW 6 NNE 5 NNE 4 WNW 6 WNW 6 NW 9 NW
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 99% 99% 99% 99% 98% 99% 99% 93%
Dew Point 53° 52° 52° 51° 50° 49° 50° 50°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 65° 61° 78° (2007) 58°
Low 51° 45° 36° (1981) 37°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 13:33 of sunlight, then sets at 7:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:22 AM with 14:37 of moolight, then sets at 10:59 PM

Rockville Centre Weather Report

NYC: Cooler Air to Sweep Away Warmth This Week

April 21, 2015; 5:54 AM ET

Cooler air will push into the New York City area during the middle and latter part of the week. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Tue. Snow Day Potential