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    • Today

      Aug 19

      84° /63°
      Mostly 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

      88° /69°F
      Humid with plenty of sunshine
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Mon

      Aug 21

      86° /70°
      Partly sunny, warm and muggy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Aug 22

      80° /57°
      A couple of thunderstorms
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Aug 23

      76° /56°
      Mostly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    88°Hi RealFeel® 96° Precipitation 8%
    Humid with plenty of sunshine
    • Winds from the
    • SSW 7 mph
    • Gusts: 12 mph
    • Max UV Index: 11 (Extreme)
    • Thunderstorms: 19%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    69°Lo RealFeel® 69° Precipitation 25%
    Partly cloudy and humid
    • Winds from the
    • SSW 6 mph
    • Gusts: 9 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Carol Stream Pollen Levels Aug 20

    • 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 8/20/2016
    High 88° 82° 92° (2010) 79°
    Low 69° 63° 51° (2002) 61°

    Sunrise/Sunset

    • Sunrise: 6:05 AM
    • Sunset: 7:46 PM
    • Duration: 13:41 hr

    Moonrise/Moonset

    • Moonrise: 4:41 AM
    • Moonset: 7:10 PM
    • Duration: 14:29 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps