• Tonight

    Aug 31

    Lo 63°

    An evening t-storm in spots

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
  • Thu

    Sep 1

    77°Lo 52°

    Partly sunny and less humid

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

    Sep 2

    75°Lo 55°

    Mostly sunny and pleasant

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Sep 3

    74°Lo 57°

    Sun, some clouds

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

    Sep 4

    75°Lo 52°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 82° RealFeel® 90° Precipitation 55%

Day

N

E

S

W

  • WNW 2 mph
  • Gusts: 9 mph

More humid with sun yielding to clouds; a shower or thunderstorm in spots late this afternoon

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 40%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 63° RealFeel® 61° Precipitation 43%

Night

N

E

S

W

  • NNW 5 mph
  • Gusts: 7 mph

An evening shower or thunderstorm in spots; otherwise, mainly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.29 in
  • Rain: 0.29 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs

Washington Pollen Levels - August 31

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

    Low

  • Ragweed Pollen

    High

  • Mold

    High

  • Grass Pollen

    Low

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2015
High 82° 79° 95° (1983) 88°
Low 63° 55° 41° (1986) 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:48 AM with 13:05 of sunlight, then sets at 7:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:59 AM with 13:34 of moolight, then sets at 7:33 PM

Washington Weather Report

Warm fall may jeopardize foliage displays in northeastern US

August 31, 2016; 4:49 PM ET

Though the summer season is winding down, forecasters are predicting a warm start to fall across the Northeast — a weather pattern that could spell bad news for fall foliage lovers. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps