• Today

    Dec 18

    44°Lo 31°

    Clouds and sun

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

    Dec 19

    44°Lo 27°

    Sunny to partly cloudy

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

    Dec 20

    42°Lo 29°

    Mostly cloudy

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

    Dec 21

    46°Lo 31°

    Partly sunny

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      26%
    more
  • Mon

    Dec 22

    45°Lo 37°

    Occasional afternoon rain

    Ragweed Pollen Weather
    • Precip
      75%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      90%
    more
Next Previous
Hi 42° RealFeel® 45° Precipitation 5%

Day

N

E

S

W

  • N 2 mph
  • Gusts: 4 mph

Mostly cloudy

  • Max UV Index: 2 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 29° RealFeel® 30° Precipitation 6%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 4 mph

Partly cloudy

  • 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

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High 42° 45° 66° (1889) 60°
Low 29° 31° (1942) 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:22 AM with 9:27 of sunlight, then sets at 4:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:37 AM with 10:20 of moolight, then sets at 3:57 PM

Langdon Weather Report

DC: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 18, 2014; 12:09 PM ET

Following benign weather this weekend, a major storm will affect Washington, D.C., much of the East and Midwest on Christmas Eve. more >

Sat. Dust & Dander

Sat. Wind Maps