• Fri

    Jul 29

    87°Lo 70°

    A couple of thunderstorms

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

    Jul 30

    89°Lo 72°

    Thundershower

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

    Jul 31

    88°Lo 69°

    A thunderstorm possible

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

    Aug 1

    84°Lo 68°

    Cloudy and humid

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

    Aug 2

    91°Lo 72°

    Mostly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 87° RealFeel® 97° Precipitation 60%

Day

N

E

S

W

  • NW 5 mph
  • Gusts: 8 mph

Periods of sun and clouds with a couple of showers and a thunderstorm; humid

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 40%
  • Precipitation: 0.81 in
  • Rain: 0.81 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 70° RealFeel® 71° Precipitation 60%

Night

N

E

S

W

  • WNW 4 mph
  • Gusts: 6 mph

Mostly cloudy with a thunderstorm or two late

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Jul 29

more Historical Weather Data >
  Today Normal Record 7/29/2015
High 87° 84° N/A 88°
Low 70° 69° N/A 70°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 14:15 of sunlight, then sets at 8:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:09 AM with 14:26 of moolight, then sets at 4:35 PM

Rockville Weather Report

Northeastern US: Monday's gusty storms to not usher in prolonged heat relief

July 24, 2016; 12:33 PM ET

Gusty thunderstorms will target the northeastern United States on Monday, but will fail to sweep away the baking heat gripping the region. more >