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    • Today

      Sep 24

      91° /61°
      Sunny and hot
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Sep 25

      90° /63°F
      Partly sunny and hot
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Tue

      Sep 26

      88° /59°
      Sunny to partly cloudy
      • High
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Wed

      Sep 27

      73° /48°
      Partly sunny and cooler
      • High
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Thu

      Sep 28

      71° /48°
      Mostly sunny and pleasant
      • High
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More

    Day

    90°Hi RealFeel® 97° Precipitation 7%
    Partly sunny and hot
    • Winds from the
    • S 6 mph
    • Gusts: 8 mph
    • Max UV Index: 13 (Extreme)
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    63°Lo RealFeel® 63° Precipitation 8%
    Mainly clear and mild
    • Winds from the
    • S 4 mph
    • Gusts: 6 mph
    • Max UV Index: N/A
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    St. Charles Pollen Levels Sep 25

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

      Low

    • Ragweed Pollen

      Moderate

    • Mold

      High

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2016
    High 90° 71° 85° (2016) 85°
    Low 63° 50° 38° (2001) 62°

    Sunrise/Sunset

    • Sunrise: 6:44 AM
    • Sunset: 6:46 PM
    • Duration: 12:02 hr

    Moonrise/Moonset

    • Moonrise: 11:59 AM
    • Moonset: 10:10 PM
    • Duration: 10:11 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps