• Today

    May 24

    64°Lo 43°

    Cooler; brief morning showers

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      35 - High
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
  • Sat

    May 25

    69°Lo 43°

    Partly sunny and windy

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      35 - High
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sun

    May 26

    69°Lo 45°

    Bright sunshine

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      35 - High
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
    more
  • Mon

    May 27

    75°Lo 49°

    Sunny and pleasant

    Very High indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      10%
    more
  • Tue

    May 28

    79°Lo 61°

    Pleasant with clouds and sun

    Extreme indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      56%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
9pm
10pm 11pm Sat
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 55° 54° 52° 50° 50° 48° 46° 44°
RealFeel® 47° 45° 44° 42° 41° 40° 37° 36°
Humidity 52% 56% 58% 60% 62% 64% 67% 69%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 14 NW 14 NW 12 NW 12 NW 11 NW 11 NW 10 NW 9 NW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 38° 38° 38° 37° 37° 37° 35° 34°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - May 24

more Historical Weather Data >
  Today Normal Record 5/24/2012
High 64° 78° 92° (1964) 83°
Low 43° 59° 41° (1905) 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:49 AM with 14:33 of sunlight, then sets at 8:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:02 PM with 10:10 of moolight, then sets at 6:12 AM

Top Story

Rockville Weather Report

Severe Storms From Washington DC to New York City

May 23, 2013; 7:34 PM ET

The same system that spawned deadly tornadoes in Oklahoma has reached the Northeast. 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?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps