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    • Early AM

      May 27

      65° Lo
      Mainly clear
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Today

      May 27

      93° /68°F
      Sunny much of the time; hot
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
    • Mon

      May 28

      93° /62°
      Mostly sunny; very warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Tue

      May 29

      85° /64°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Wed

      May 30

      74° /62°
      A shower and t-storm around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More

    Day

    93°Hi RealFeel® 101° Precipitation 6%
    Sunny much of the time; hot; air quality will be unhealthy for sensitive groups
    • Winds from the
    • SW 6 mph
    • Gusts: 8 mph
    • Max UV Index: 10 (Extreme)
    • Thunderstorms: 13%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    68°Lo RealFeel® 66° Precipitation 0%
    Clear to partly cloudy; warm; air quality will be unhealthy for sensitive groups
    • Winds from the
    • SSW 4 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 9%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Grayslake Pollen Levels May 27

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

      High

    • Ragweed Pollen

      Low

    • Mold

      High

    • Grass Pollen

      Moderate

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/27/2017
    High 93° 70° N/A 70°
    Low 68° 50° N/A 48°

    Sunrise/Sunset

    • Sunrise: 5:21 AM
    • Sunset: 8:18 PM
    • Duration: 14:57 hr

    Moonrise/Moonset

    • Moonrise: 6:25 PM
    • Moonset: 5:05 AM
    • Duration: 10:40 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps