• Tonight

    Apr 20

    Lo 32°

    Partly cloudy and chilly

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    Apr 21

    69°Lo 41°

    Pleasant and warmer

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Tue

    Apr 22

    72°Lo 45°

    Some sun, then clouds

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Wed

    Apr 23

    59°Lo 33°

    Cooler with a passing shower

    Moderate indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      70%
    more
  • Thu

    Apr 24

    61°Lo 35°

    Partly sunny and windy

    High indoor dust & dander levels
    • Precip
      3%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 72° RealFeel® 73° Precipitation 25%

Day

N

E

S

W

  • SSW 8 mph
  • Gusts: 17 mph

Some sun, then increasing clouds

  • Max UV Index: 6 (High)
  • Thunderstorms: 10%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 45° RealFeel® 34° Precipitation 78%

Night

N

E

S

W

  • W 8 mph
  • Gusts: 17 mph

Considerable cloudiness and becoming rainy

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0.29 in
  • Rain: 0.29 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4.5 hrs
  • Hours of Rain: 4.5 hrs

Temperature History - Apr 22

more Historical Weather Data >
  Today Normal Record 4/22/2013
High 72° 62° N/A 53°
Low 45° 38° N/A 30°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:55 AM with 13:41 of sunlight, then sets at 7:36 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:50 AM with 10:35 of moolight, then sets at 12:25 PM

Top Story

Lancaster Weather Report

Boston: Milder Patriots' Day Follows Easter Cooldown

April 20, 2014; 3:11 PM ET

After taking a tumble Easter Sunday, temperatures will quickly rebound in Boston for Patriots' Day. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Tue. Dust & Dander

Tue. Wind Maps