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    • Early AM

      May 27

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

      May 27

      94° /67°
      Mostly sunny; summerlike
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Mon

      May 28

      95° /66°F
      Partly sunny; summerlike
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: High
    • Tue

      May 29

      91° /68°
      Mostly sunny; hot
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Wed

      May 30

      75° /63°
      A shower and t-storm around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More

    Day

    95°Hi RealFeel® 101° Precipitation 3%
    Partly sunny; summerlike; air quality will be unhealthy for sensitive groups
    • Winds from the
    • NE 6 mph
    • Gusts: 8 mph
    • Max UV Index: 10 (Extreme)
    • Thunderstorms: 24%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    66°Lo RealFeel® 64° Precipitation 3%
    Clear; mild; air quality will be unhealthy for sensitive groups
    • Winds from the
    • E 5 mph
    • Gusts: 8 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

    Naperville Pollen Levels May 28

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

      High

    • Ragweed Pollen

      Low

    • Mold

      High

    • Grass Pollen

      High

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/28/2017
    High 95° 74° 92° (2012) 75°
    Low 66° 52° 44° (2004) 54°

    Sunrise/Sunset

    • Sunrise: 5:22 AM
    • Sunset: 8:18 PM
    • Duration: 14:56 hr

    Moonrise/Moonset

    • Moonrise: 7:26 PM
    • Moonset: 5:42 AM
    • Duration: 10:16 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps