• Today

    Aug 24

    85°Lo 65°

    Plenty of sun

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

    Aug 25

    88°Lo 70°

    Partly sunny and more humid

    High ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
  • Fri

    Aug 26

    93°Lo 70°

    A thunderstorm in the area

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

    Aug 27

    88°Lo 66°

    Mostly sunny and very warm

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

    Aug 28

    88°Lo 68°

    Partly sunny and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 88° RealFeel® 93° Precipitation 10%

Day

N

E

S

W

  • S 6 mph
  • Gusts: 9 mph

More humid with times of clouds and sun

  • Max UV Index: 6 (High)
  • Thunderstorms: 11%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 70° RealFeel® 73° Precipitation 55%

Night

N

E

S

W

  • SSW 5 mph
  • Gusts: 8 mph

Partly cloudy with a shower or thunderstorm around

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.11 in
  • Rain: 0.11 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs

Rockville Pollen Levels - August 25

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

    Low

  • Ragweed Pollen

    High

  • Mold

    High

  • Grass Pollen

    Moderate

Temperature History - Aug 25

more Historical Weather Data >
  Today Normal Record 8/25/2015
High 88° 82° N/A 82°
Low 70° 66° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:32 AM with 13:17 of sunlight, then sets at 7:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:08 AM with 14:20 of moolight, then sets at 2:28 PM

Rockville Weather Report

Heat, humidity to return across northeastern US late this week

August 24, 2016; 6:07 AM ET

Following a fall-like start to the week, warmth and humidity will build over the northeastern United States prior to the weekend. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps