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    • Tonight

      Feb 27

      44° Lo F
      Rain and drizzle late; fog
      • 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: High
    • Tue

      Feb 28

      63° /40°
      A strong p.m. thunderstorm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Wed

      Mar 1

      42° /25°
      Rain and snow
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Thu

      Mar 2

      42° /21°
      Snow showers in the afternoon
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Fri

      Mar 3

      38° /29°
      Partly sunny and chilly
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    50°Hi RealFeel® 46° Precipitation 25%
    Intervals of clouds and sunshine
    • S 8 mph
    • Gusts: 21 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 20%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    44°Lo RealFeel® 35° Precipitation 80%
    Mostly cloudy, then areas of fog late with occasional rain and drizzle
    • SE 10 mph
    • Gusts: 17 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0.21 in
    • Rain: 0.21 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2.5 hrs
    • Hours of Rain: 2.5 hrs

    Carol Stream Pollen Levels Feb 27

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

      High

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 2/27/2016
    High 50° 40° 54° (2016) 54°
    Low 44° 24° -8° (2015) 27°

    Sunrise/Sunset

    • Sunrise: 6:31 AM
    • Sunset: 5:40 PM
    • Duration: 11:09 hr

    Moonrise/Moonset

    • Moonrise: 7:10 AM
    • Moonset: 7:05 PM
    • Duration: 11:55 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps