• Early AM

    Aug 22

    Lo 67°

    A shower possible

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Today

    Aug 22

    86°Lo 68°

    A couple of p.m. t-storms

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

    Aug 23

    79°Lo 64°

    A shower or two; not as warm

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Sun

    Aug 24

    79°Lo 59°

    Sun and clouds

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      53%
    more
  • Mon

    Aug 25

    80°Lo 61°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      7%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      27%
    more
Next Previous
Hi 79° RealFeel® 81° Precipitation 59%

Day

N

E

S

W

  • NE 6 mph
  • Gusts: 10 mph

More clouds than sun; not as warm with a brief shower or two

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 27%
  • Precipitation: 0.11 in
  • Rain: 0.11 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 64° RealFeel® 62° Precipitation 18%

Night

N

E

S

W

  • E 6 mph
  • Gusts: 9 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 5%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Rockville Pollen Levels - August 23

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Aug 23

more Historical Weather Data >
  Today Normal Record 8/23/2013
High 79° 86° 98° (1936) 79°
Low 64° 69° 52° (1925) 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 13:24 of sunlight, then sets at 7:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:44 AM with 13:52 of moolight, then sets at 6:36 PM

Top Story

Rockville Weather Report

DC: Downpour, Flooding Risk to Increase

August 21, 2014; 12:10 PM ET

A wedge of dry air will slowly erode at midweek and will allow drenching showers and thunderstorms to survive the trip into Washington, D.C., from the Midwest. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps