• Today

    Apr 23

    78°Lo 58°

    Increasing amounts of sun

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Thu

    Apr 24

    70°Lo 49°

    Not as warm; an a.m. t-storm

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Fri

    Apr 25

    79°Lo 54°

    Sunshine and warmer

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sat

    Apr 26

    79°Lo 61°

    A p.m. t-storm in spots

    Low indoor dust & dander levels
    • Precip
      48%
    • Wind
      Speed
      11 mph
    • Cloud
      Cover
      70%
    more
  • Sun

    Apr 27

    75°Lo 57°

    A chance for gusty t-storms

    Low indoor dust & dander levels
    • Precip
      35%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      86%
    more
Next Previous
Hi 78° RealFeel® 76° Precipitation 50%

Day

N

E

S

W

  • S 11 mph
  • Gusts: 26 mph

Increasing amounts of sun

  • Max UV Index: 6 (High)
  • Thunderstorms: 9%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 58° RealFeel® 49° Precipitation 56%

Night

N

E

S

W

  • S 11 mph
  • Gusts: 20 mph

Considerable clouds with a strong thunderstorm late

  • Max UV Index: N/A
  • Thunderstorms: 95%
  • Precipitation: 0.2 in
  • Rain: 0.2 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Rockville Pollen Levels - April 23

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 23

more Historical Weather Data >
  Today Normal Record 4/23/2013
High 78° 69° N/A 55°
Low 58° 45° N/A 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 13:29 of sunlight, then sets at 8:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:57 AM with 11:17 of moolight, then sets at 2:14 PM

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps