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    • Today

      Feb 20

      66° /52°F
      More clouds than sun
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Feb 21

      66° /42°
      Clouds breaking and warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Feb 22

      70° /43°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Feb 23

      57° /43°
      Cooler; a little p.m. rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Feb 24

      61° /32°
      Rain and a t-storm; breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    66°Hi RealFeel® 63° Precipitation 12%
    Warm with variable cloudiness; breezy this afternoon
    • SSE 12 mph
    • Gusts: 28 mph
    • Max UV Index: 2 (Low)
    • 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

    52°Lo RealFeel® 45° Precipitation 56%
    Mostly cloudy and mild with occasional rain and a thunderstorm
    • SSW 10 mph
    • Gusts: 21 mph
    • Max UV Index: N/A
    • Thunderstorms: 30%
    • Precipitation: 0.44 in
    • Rain: 0.44 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3 hrs
    • Hours of Rain: 3 hrs

    St. Charles Pollen Levels Feb 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 2/20/2016
    High 66° 37° 56° (2016) 56°
    Low 52° 22° -9° (2015) 36°

    Sunrise/Sunset

    • Sunrise: 6:42 AM
    • Sunset: 5:32 PM
    • Duration: 10:50 hr

    Moonrise/Moonset

    • Moonrise: 2:11 AM
    • Moonset: 12:12 PM
    • Duration: 10:01 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps