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    Next 5 Days
    • Current Weather

      73° F
      Mostly cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 73%
      • Yesterday Temp: 75°
      • RealFeel: 76°
    • Today

      Oct 21

      80° Hi
      Periods of clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    • Tomorrow

      Oct 22

      65° Hi
      Rain and a t-storm; cooler
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    • Monday

      Oct 23

      68° Hi
      Clouds giving way to some sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    Next 6 Hours
    • 1PM

      Oct 21

      75°
      Partly sunny
      Precip 49%
    • 2PM

      78°
      Partly sunny
      Precip 20%
    • 3PM

      80°
      Partly sunny
      Precip 20%
    • 4PM

      79°
      Partly sunny
      Precip 20%
    • 5PM

      77°
      Partly sunny
      Precip 20%
    • 6PM

      76°
      Partly sunny
      Precip 20%

    O'Fallon Pollen Levels Oct 21

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

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

     The storms will target an area from Iowa to Texas and could bring damaging winds, hail and heavy rain.
    Gusty storms to rattle central US

    Allergies Live Feed

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps