• Tonight

    Jun 30

    Lo 66°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Jul 1

    84°Lo 64°

    A thunderstorm in spots

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

    Jul 2

    81°Lo 58°

    Sun and some clouds

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

    Jul 3

    79°Lo 63°

    Partial sunshine

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

    Jul 4

    80°Lo 69°

    A t-storm in the afternoon

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
Next Previous
Hi 80° RealFeel® 91° Precipitation 70%

Day

N

E

S

W

  • S 4 mph
  • Gusts: 6 mph

Sun turning to increasing clouds with a shower or thunderstorm around in the afternoon

  • Max UV Index: 7 (High)
  • Thunderstorms: 40%
  • Precipitation: 0.4 in
  • Rain: 0.4 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 69° RealFeel® 69° Precipitation 65%

Night

N

E

S

W

  • SSW 5 mph
  • Gusts: 7 mph

Considerable cloudiness with a couple of showers and a thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.69 in
  • Rain: 0.69 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs

Temperature History - Jul 4

more Historical Weather Data >
  Today Normal Record 7/4/2015
High 80° 85° N/A 79°
Low 69° 68° N/A 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:50 of sunlight, then sets at 8:38 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:07 AM with 14:35 of moolight, then sets at 8:42 PM

Rockville Weather Report

Dry weather to dominate July Fourth weekend from Chicago to NYC, Boston

June 30, 2016; 8:52 PM ET

While downpours could come calling at the start and finish of the July Fourth weekend in the northeastern United States, the vast majority of the time will be dry. more >

Mon. Dust & Dander

Mon. Wind Maps