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    • Tonight

      Feb 18

      46° Lo
      Mild with rain and drizzle
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Feb 19

      73° /62°F
      A shower and t-storm around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Feb 20

      75° /31°
      A shower and t-storm around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Feb 21

      37° /32°
      Mostly cloudy and much colder
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Feb 22

      49° /42°
      Low clouds
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    73°Hi RealFeel® 69° Precipitation 63%
    Considerable cloudiness and breezy with a couple of showers and a thunderstorm
    • Winds from the
    • S 16 mph
    • Gusts: 26 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 40%
    • Precipitation: 0.43 in
    • Rain: 0.43 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 4 hrs
    • Hours of Rain: 4 hrs

    Night

    62°Lo RealFeel® 55° Precipitation 56%
    Mild with considerable cloudiness; occasional rain and a thunderstorm late
    • Winds from the
    • S 13 mph
    • Gusts: 17 mph
    • Max UV Index: N/A
    • Thunderstorms: 30%
    • Precipitation: 0.13 in
    • Rain: 0.13 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Saint Charles Pollen Levels Feb 19

    • 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 2/19/2017
    High 73° 46° 77° (2016) 72°
    Low 62° 29° -3° (1936) 41°

    Sunrise/Sunset

    • Sunrise: 6:49 AM
    • Sunset: 5:45 PM
    • Duration: 10:56 hr

    Moonrise/Moonset

    • Moonrise: 9:01 AM
    • Moonset: 9:41 PM
    • Duration: 12:40 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps