• Today

    May 21

    75°Lo 50°

    A couple of thunderstorms

    Very High indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Wed

    May 22

    68°Lo 48°

    A thunderstorm in spots

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Thu

    May 23

    69°Lo 37°

    Clouds giving way to some sun

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Fri

    May 24

    70°Lo 49°

    Pleasant with clouds and sun

    Very High indoor dust & dander levels
    • Precip
      11%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      28%
    more
  • Sat

    May 25

    66°Lo 51°

    Rather cloudy with a t-storm

    Extreme indoor dust & dander levels
    • Precip
      58%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      93%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
T-storms
Mostly Cloudy
Mostly Cloudy
T-storms
Partly Cloudy
Partly Cloudy
T-storms
Cloudy
Temp (°F) 61° 63° 65° 65° 69° 70° 68° 73°
RealFeel® 56° 57° 61° 62° 67° 69° 66° 71°
Humidity 92% 83% 75% 78% 65% 58% 69% 55%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
40%
 
43%
 
47%
 
51%
 
47%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 8 SSW 13 SSW 13 SSW 13 SSW 13 SSW 13 SSW 13 SW 12 SW
UV Index 0 1 1 2 3 4 4 3
Cloud Cover 94% 83% 76% 71% 73% 74% 87% 94%
Dew Point 58° 58° 57° 58° 57° 55° 58° 56°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2012
High 75° 74° 93° (1934) 78°
Low 50° 51° 33° (1931) 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:42 AM with 14:49 of sunlight, then sets at 8:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:40 PM with 11:09 of moolight, then sets at 3:49 AM

Top Story

Waterloo Weather Report

Reports: Tornado Levels Homes in Oklahoma City Suburbs

May 21, 2013; 4:00 AM ET

Tornadoes broke out from Texas to Missouri on Monday with a deadly tornado moving through the town of Moore, Okla. more >

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps