• Tonight

    May 21

    Lo 52°

    Mostly cloudy, a t-storm late

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High

  • Wed

    May 22

    70°Lo 49°

    A p.m. t-storm in spots

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more

  • Thu

    May 23

    67°Lo 37°

    Clouds giving way to some sun

    Very High indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more

  • Fri

    May 24

    68°Lo 44°

    Mostly sunny

    Very High indoor dust & dander levels
    • Precip
      5%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      18%
    more

  • Sat

    May 25

    67°Lo 47°

    Mostly cloudy with a t-storm

    Extreme indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 72° RealFeel® 71° Precipitation 35%

Day

N

E

S

W

  • SW 11 mph
  • Gusts: 26 mph

Variable cloudiness

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 40%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 52° RealFeel® 51° Precipitation 57%

Night

N

E

S

W

  • WSW 2 mph
  • Gusts: 10 mph

Mostly cloudy with a shower or thunderstorm around late

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Lancaster Pollen Levels - May 21

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2012
High 72° 73° N/A 77°
Low 53° 48° N/A 40°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:35 AM with 14:50 of sunlight, then sets at 8:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:33 PM with 11:09 of moolight, then sets at 3:42 AM

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps