• Early AM

    May 21

    Lo 62°

    Partly cloudy

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Today

    May 21

    77°Lo 64°

    A thunderstorm this afternoon

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Wed

    May 22

    78°Lo 64°

    Thundershower

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Thu

    May 23

    72°Lo 60°

    A couple of thunderstorms

    Extreme indoor dust & dander levels
    • Precip
      61%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      89%
    more
  • Fri

    May 24

    71°Lo 52°

    Chance of a morning shower

    Very High indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      73%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 65° 65° 64° 65° 66° 68° 70° 72°
RealFeel® 62° 62° 62° 62° 64° 67° 70° 74°
Humidity 90% 91% 93% 93% 93% 89% 85% 81%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
20%
 
20%
 
20%
 
13%
 
10%
 
10%
 
11%
 
14%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 6 S 6 S 7 SSW 7 SSW 8 SSW 8 SSW 9 SSW 9 SSW
UV Index 0 0 0 0 1 2 3 4
Cloud Cover 45% 45% 45% 45% 70% 70% 70% 70%
Dew Point 62° 62° 62° 63° 64° 65° 65° 66°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - May 22

more Historical Weather Data >
  Today Normal Record 5/22/2012
High 78° 70° N/A 69°
Low 64° 55° 43° (1990) 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:32 AM with 14:39 of sunlight, then sets at 8:11 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:29 PM with 10:45 of moolight, then sets at 4:14 AM

Top Story

Rockville Centre Weather Report

Summerlike Tuesday in DC, Philadelphia, New York

May 20, 2013; 10:38 PM ET

Rising temperatures and humidity across the mid-Atlantic will have it feeling like the end of June. more >

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps