• Today

    Sep 20

    78°Lo 57°

    Mostly sunny

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

    Sep 21

    74°Lo 49°

    A couple of thunderstorms

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

    Sep 22

    61°Lo 37°

    Cooler with periods of sun

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

    Sep 23

    67°Lo 43°

    Sunny much of the time

    Moderate ragweed pollen levels
    • Precip
      2%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      11%
    more
  • Wed

    Sep 24

    72°Lo 45°

    Plenty of sunshine

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
Next Previous
Hi 74° RealFeel® 73° Precipitation 60%

Day

N

E

S

W

  • WSW 12 mph
  • Gusts: 25 mph

Cloudy most of the time with a couple of showers and a thunderstorm; breezy

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 40%
  • Precipitation: 0.26 in
  • Rain: 0.26 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs
Lo 49° RealFeel® 45° Precipitation 40%

Night

N

E

S

W

  • W 6 mph
  • Gusts: 15 mph

Patchy clouds with a shower in places

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Washington Pollen Levels - September 21

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 74° 72° N/A 68°
Low 49° 48° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:07 AM with 12:13 of sunlight, then sets at 7:20 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:40 AM with 13:15 of moolight, then sets at 5:55 PM

Top Story

Washington Weather Report

Pittsburgh: Cooler Weather to Return

September 20, 2014; 5:12 AM ET

A brief warmup is in store for the Pittsburgh area through Sunday before cooler weather makes a return for the start of the new week. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps