• Today

    Apr 20

    72°Lo 55°

    Mostly cloudy with a t-storm

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Mon

    Apr 21

    71°Lo 37°

    Brief showers

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
  • Tue

    Apr 22

    60°Lo 36°

    Mostly sunny and less humid

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Wed

    Apr 23

    61°Lo 48°

    Mostly cloudy, a little rain

    Moderate indoor dust & dander levels
    • Precip
      56%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      81%
    more
  • Thu

    Apr 24

    64°Lo 43°

    Strong thunderstorms

    Low indoor dust & dander levels
    • Precip
      66%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      93%
    more
Next Previous
Hi 71° RealFeel® 69° Precipitation 65%

Day

N

E

S

W

  • NW 13 mph
  • Gusts: 24 mph

Clouds and breaks of sun; breezy with brief showers

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.14 in
  • Rain: 0.14 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 2.5 hrs
Lo 37° RealFeel® 27° Precipitation 5%

Night

N

E

S

W

  • NNW 12 mph
  • Gusts: 19 mph

Mainly clear, breezy and colder

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

Waterloo Pollen Levels - April 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 71° 63° 93° (1980) 62°
Low 37° 39° 22° (1934) 39°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:39 of sunlight, then sets at 7:58 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:31 AM with 10:13 of moolight, then sets at 11:44 AM

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps