• Tonight

    Sep 15

    Lo 63°

    A passing late-night shower

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Tue

    Sep 16

    79°Lo 62°

    Partly sunny

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Wed

    Sep 17

    76°Lo 63°

    Mostly sunny

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Sep 18

    78°Lo 59°

    Partly sunny

    Moderate ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      33%
    more
  • Fri

    Sep 19

    75°Lo 61°

    Partly sunny and nice

    Ragweed Pollen Weather
    • Precip
      15%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      42%
    more
Next Previous
Hi 79° RealFeel® 79° Precipitation 5%

Day

N

E

S

W

  • NNW 8 mph
  • Gusts: 14 mph

Partly sunny

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 62° RealFeel® 59° Precipitation 10%

Night

N

E

S

W

  • N 5 mph
  • Gusts: 9 mph

Mainly clear

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

Colony Hill Pollen Levels - September 16

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 16

more Historical Weather Data >
  Today Normal Record 9/16/2013
High 79° 80° 96° (1991) 77°
Low 62° 62° 44° (1902) 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:50 AM with 12:25 of sunlight, then sets at 7:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:01 AM with 14:33 of moolight, then sets at 2:34 PM

Top Story

Colony Hill Weather Report

DC: Much of Week to Be Dry, Cool

September 15, 2014; 7:00 PM ET

Rainfall will be scarce around Washington, D.C., this week, but cool air will be plentiful. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps