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    • Today

      Aug 18

      76° /56°
      A thunderstorm in spots
      • 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
    • Sat

      Aug 19

      81° /59°F
      Partly sunny
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
    • Sun

      Aug 20

      87° /67°
      Partly sunny and humid
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Aug 21

      82° /67°
      A strong afternoon t-storm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Aug 22

      78° /55°
      Heavy rain and a thunderstorm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    81°Hi RealFeel® 88° Precipitation 6%
    Partly sunny
    • Winds from the
    • W 5 mph
    • Gusts: 8 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

    59°Lo RealFeel® 58° Precipitation 4%
    Clear
    • Winds from the
    • S 5 mph
    • Gusts: 6 mph
    • Max UV Index: N/A
    • Thunderstorms: 6%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Lancaster Pollen Levels Aug 19

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

      Low

    • Ragweed Pollen

      High

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 8/19/2016
    High 81° 82° N/A 82°
    Low 59° 59° N/A 68°

    Sunrise/Sunset

    • Sunrise: 6:13 AM
    • Sunset: 7:59 PM
    • Duration: 13:46 hr

    Moonrise/Moonset

    • Moonrise: 3:43 AM
    • Moonset: 6:37 PM
    • Duration: 14:54 hr
    Astronomy

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps