• Tonight

    May 18

    Lo 55°

    Partly cloudy

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Sun

    May 19

    80°Lo 58°

    Clouds and sun with a t-storm

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Mon

    May 20

    86°Lo 61°

    A shower or t-storm in spots

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Tue

    May 21

    88°Lo 60°

    Some sun, a t-storm possible

    Extreme indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      68%
    more
  • Wed

    May 22

    83°Lo 62°

    Periods of sun with a t-storm

    Extreme indoor dust & dander levels
    • Precip
      57%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 79° RealFeel® 86° Precipitation 35%

Day

N

E

S

W

  • ESE 4 mph
  • Gusts: 14 mph

Turning cloudy

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 40%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 55° RealFeel® 53° Precipitation 35%

Night

N

E

S

W

  • E 3 mph
  • Gusts: 6 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 7%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Washington Pollen Levels - May 18

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - May 18

more Historical Weather Data >
  Today Normal Record 5/18/2012
High 79° 70° 86° (1982) 75°
Low 55° 46° 28° (2009) 37°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:03 AM with 14:29 of sunlight, then sets at 8:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:35 PM with 12:49 of moolight, then sets at 2:24 AM

How Weather Impacts Seasonal Allergy Symptoms

May 18, 2013; 5:00 AM ET If you suffer with seasonal allergies, the weather can relieve or worsen your symptoms. Marja Martinez has the details.

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps