• Today

    Aug 27

    88°Lo 67°

    Mostly sunny and very warm

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

    Aug 28

    83°Lo 58°

    Partly sunny and less humid

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

    Aug 29

    82°Lo 64°

    Sunshine and patchy clouds

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

    Aug 30

    87°Lo 71°

    An afternoon thunderstorm

    Low ragweed pollen levels
    • Precip
      55%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      45%
    more
  • Sun

    Aug 31

    90°Lo 70°

    Clouds and sun with a t-storm

    Ragweed Pollen Weather
    • Precip
      55%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      67%
    more
Next Previous
Hi 88° RealFeel® 92° Precipitation 10%

Day

N

E

S

W

  • NW 2 mph
  • Gusts: 4 mph

Mostly sunny, very warm and more humid

  • Max UV Index: 7 (High)
  • Thunderstorms: 14%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 67° RealFeel® 63° Precipitation 40%

Night

N

E

S

W

  • N 3 mph
  • Gusts: 7 mph

A shower or thunderstorm in spots this evening; otherwise, partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Rockville Pollen Levels - August 27

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Aug 27

more Historical Weather Data >
  Today Normal Record 8/27/2013
High 88° 85° 100° (1987) 94°
Low 67° 68° 51° (1885) 73°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:33 AM with 13:14 of sunlight, then sets at 7:47 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:26 AM with 12:13 of moolight, then sets at 8:39 PM

Top Story

Rockville Weather Report

DC to Feel Like Summer This Week

August 27, 2014; 4:06 AM ET

Warm weather fans in the Washington, D.C., area will have something to be happy about this week, but Atlantic Ocean bathers may need to be aware of Cristobal. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps