• Tonight

    Jul 31

    Lo 65°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Fri

    Aug 1

    79°Lo 64°

    Cloudy spells with showers

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

    Aug 2

    80°Lo 67°

    Mostly cloudy with a t-storm

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

    Aug 3

    78°Lo 65°

    Mostly cloudy with a t-storm

    Low ragweed pollen levels
    • Precip
      56%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      93%
    more
  • Mon

    Aug 4

    85°Lo 64°

    Warmer with a thunderstorm

    Ragweed Pollen Weather
    • Precip
      55%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      48%
    more
Next Previous
Hi 85° RealFeel® 87° Precipitation 2%

Day

N

E

S

W

  • SW 5 mph
  • Gusts: 13 mph

Sun followed by some clouds

  • Max UV Index: 7 (High)
  • Thunderstorms: 8%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 65° RealFeel® 63° Precipitation 25%

Night

N

E

S

W

  • SSE 3 mph
  • Gusts: 8 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 8%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Rockville Pollen Levels - July 31

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2013
High 85° 88° 103° (1954) 82°
Low 65° 71° 52° (1895) 71°

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 10:31 AM with 12:04 of moolight, then sets at 10:35 PM

Top Story

Rockville Weather Report

DC, Baltimore: Rain to Dampen Weekend Plans

July 31, 2014; 1:02 PM ET

Rain will converge along the Atlantic Seaboard this weekend with Washington, D.C., and Baltimore caught in the middle. more >

Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps