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    • Today

      Aug 19

      82° /59°
      Partly sunny
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Sun

      Aug 20

      82° /66°F
      A strong afternoon t-storm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Mon

      Aug 21

      82° /64°
      Showers and a heavier t-storm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Aug 22

      77° /52°
      Decreasing clouds and breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Aug 23

      75° /51°
      Partly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    82°Hi RealFeel® 88° Precipitation 59%
    Periods of sun and clouds with a strong thunderstorm later in the afternoon
    • Winds from the
    • SSE 9 mph
    • Gusts: 14 mph
    • Max UV Index: 9 (Very High)
    • Thunderstorms: 95%
    • Precipitation: 0.37 in
    • Rain: 0.37 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Night

    66°Lo RealFeel® 64° Precipitation 55%
    Cloudy with a strong thunderstorm late; storms may bring downpours, large hail and damaging winds
    • Winds from the
    • SSE 6 mph
    • Gusts: 12 mph
    • Max UV Index: N/A
    • Thunderstorms: 95%
    • Precipitation: 0.15 in
    • Rain: 0.15 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Waterloo Pollen Levels Aug 20

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

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 8/20/2016
    High 82° 82° 100° (1916) 73°
    Low 66° 60° 33° (1950) 58°

    Sunrise/Sunset

    • Sunrise: 6:21 AM
    • Sunset: 8:03 PM
    • Duration: 13:42 hr

    Moonrise/Moonset

    • Moonrise: 4:58 AM
    • Moonset: 7:29 PM
    • Duration: 14:31 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps