• Today

    Jul 30

    84°Lo 71°

    A heavy afternoon t-storm

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

    Jul 31

    87°Lo 70°

    Couple of thunderstorms

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

    Aug 1

    89°Lo 68°

    Clouds and sun with a t-storm

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

    Aug 2

    85°Lo 64°

    Periods of sun

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

    Aug 3

    85°Lo 67°

    Periods of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 84° RealFeel® 94° Precipitation 60%

Day

N

E

S

W

  • SSE 7 mph
  • Gusts: 18 mph

A downpour in the morning, then a heavy thunderstorm; storms may bring downpours and damaging winds

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.54 in
  • Rain: 0.54 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs
Lo 71° RealFeel® 74° Precipitation 59%

Night

N

E

S

W

  • S 5 mph
  • Gusts: 8 mph

An evening shower or heavy thunderstorm in the area; otherwise, mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.35 in
  • Rain: 0.35 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Rockville Pollen Levels - July 30

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

    Low

  • Ragweed Pollen

    Low

  • Mold

    High

  • Grass Pollen

    Low

Temperature History - Jul 30

more Historical Weather Data >
  Today Normal Record 7/30/2015
High 84° 84° N/A 90°
Low 71° 69° N/A 73°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:08 AM with 14:13 of sunlight, then sets at 8:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:00 AM with 14:36 of moolight, then sets at 5:36 PM

Rockville Weather Report

Soaking storms to elevate flash flood threat in northeastern US this weekend

July 30, 2016; 10:21 AM ET

Rounds of drenching showers and heavy thunderstorms will heighten the risk of flash flooding across the northeastern United States through the final weekend of July. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps