• Today

    Aug 28

    88°Lo 65°

    Sunshine, very warm and humid

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

    Aug 29

    90°Lo 66°

    Partly sunny and hot

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

    Aug 30

    86°Lo 65°

    Mostly sunny

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

    Aug 31

    89°Lo 66°

    A p.m. t-storm in spots

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

    Sep 1

    82°Lo 58°

    Partly to mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 88° RealFeel® 94° Precipitation 1%

Day

N

E

S

W

  • E 5 mph
  • Gusts: 8 mph

Mostly sunny, very warm and humid

  • Max UV Index: 7 (High)
  • Thunderstorms: 5%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 65° RealFeel® 68° Precipitation 10%

Night

N

E

S

W

  • S 4 mph
  • Gusts: 7 mph

Clear to partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • 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 28

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Low

  • Ragweed Pollen

    Moderate

  • Mold

    Low

  • Grass Pollen

    Moderate

Temperature History - Aug 28

more Historical Weather Data >
  Today Normal Record 8/28/2015
High 88° 82° N/A 82°
Low 65° 66° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 13:10 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:46 AM with 14:31 of moolight, then sets at 5:17 PM

Rockville Weather Report

September to start on cooler, less humid note in northeastern US

August 28, 2016; 4:04 AM ET

Brief relief from heat and humidity will arrive in the northeastern United States at the start of September. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps