• Today

    Aug 27

    90°Lo 66°

    Mostly sunny and very warm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
  • Sun

    Aug 28

    88°Lo 65°

    Mostly sunny and humid

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Aug 29

    90°Lo 67°

    Partly sunny

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Tue

    Aug 30

    86°Lo 66°

    Partly sunny

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Aug 31

    89°Lo 67°

    A p.m. t-storm in spots

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Mainly clear 81° Lo 71° RealFeel® 81° / 72°

N

E

S

W

  • Precipitation: 10%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 74%
  • Cloud Cover: 11%
  • Dew Point: 66° F
  • Visibility: 10 mi
5 mph

Temperature History - Aug 27

more Historical Weather Data >
  Today Normal Record 8/27/2015
High 90° 82° N/A 79°
Low 66° 66° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:33 AM with 13:13 of sunlight, then sets at 7:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:50 AM with 14:36 of moolight, then sets at 4:26 PM

Rockville Weather Report

More summery days await the northeastern US into September

August 27, 2016; 12:24 PM ET

Summer heat has returned to the northeastern United States and will continue to dominate most days into September. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps