• Tonight

    Sep 17

    Lo 54°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Thu

    Sep 18

    74°Lo 54°

    Partly sunny and pleasant

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Sep 19

    72°Lo 56°

    Partly sunny and pleasant

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Sat

    Sep 20

    79°Lo 59°

    Clearing

    Moderate ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      70%
    more
  • Sun

    Sep 21

    82°Lo 61°

    Warm with partial sunshine

    Ragweed Pollen Weather
    • Precip
      16%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      37%
    more
Next Previous
Partly sunny 68° RealFeel® 68°

N

E

S

W

  • Humidity: 55%
  • Pressure: 30.01 in
  • UV Index: 0
  • Cloud Cover: 40%
  • Ceiling: 26700 ft
  • Dew Point: 52° F
  • Visibility: 10 mi
0 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:51 AM with 12:23 of sunlight, then sets at 7:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:52 AM with 14:28 of moolight, then sets at 3:20 PM

Temperature Summary - 6:58 PM

  Temp (°F)
Now 68°
Yesterday 66°
RealFeel® 68°
RealFeel® Shade 68°
Wind Chill 68°
Dew Point 52°
  Hi / Lo
Previous 6 Hours 74°
  68°
Previous 12 Hours 74°
  48°
Previous 24 Hours 74°
  48°

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 74° 79° 96° (1991) 72°
Low 54° 62° 44° (1923) 54°

Precipitation Summary - 6:58 PM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0
Previous 6 Hours 0
Previous 9 Hours 0
Previous 12 Hours 0
Previous 18 Hours 0
Previous 24 Hours 0
Top Story

Rockville Weather Report

DC: Remainder of Week to Be Dry, Cool

September 17, 2014; 7:11 AM ET

Rainfall will be scarce around Washington, D.C., this week, but cool air will be plentiful. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps