• Today

    May 23

    65°Lo 46°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sun

    May 24

    82°Lo 56°

    Mostly sunny; breezy, warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Mon

    May 25

    82°Lo 63°

    Intervals of clouds and sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Tue

    May 26

    86°Lo 66°

    A t-storm in the afternoon

    Low ragweed pollen levels
    • Precip
      51%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      70%
    more
  • Wed

    May 27

    88°Lo 65°

    Partly sunny, breezy and warm

    Ragweed Pollen Weather
    • Precip
      24%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      32%
    more
Next Previous
Hi 82° RealFeel® 82° Precipitation 12%

Day

N

E

S

W

  • W 14 mph
  • Gusts: 22 mph

Mostly sunny, breezy and warmer

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 56° RealFeel® 54° Precipitation 0%

Night

N

E

S

W

  • SW 7 mph
  • Gusts: 12 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • 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 - May 24

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - May 24

more Historical Weather Data >
  Today Normal Record 5/24/2014
High 82° 72° N/A 67°
Low 56° 48° N/A 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:17 AM with 14:53 of sunlight, then sets at 8:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:30 AM with 13:36 of moolight, then sets at 1:06 AM

Lancaster Weather Report

Boston: Temperatures to Ride Roller Coaster Into Memorial Day

May 23, 2015; 5:05 AM ET

Temperatures will remain on a roller coaster ride around the Boston area through the Memorial Day holiday weekend. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps