• Today

    Apr 18

    71°Lo 40°

    Warmer with clouds and sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sun

    Apr 19

    61°Lo 39°

    Sunny much of the time

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Mon

    Apr 20

    51°Lo 49°

    Breezy and cooler with rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Tue

    Apr 21

    64°Lo 39°

    Warmer with a shower or two

    Low ragweed pollen levels
    • Precip
      57%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      82%
  • Wed

    Apr 22

    60°Lo 39°

    Mostly cloudy

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      42%
    more
Next Previous
Clear 52° Lo 43° RealFeel® 47° / 37°

N

E

S

W

  • Precipitation: 20%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 69%
  • Cloud Cover: 23%
  • Dew Point: 37° F
  • Visibility: 9 mi
9 mph

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 64° 62° N/A 74°
Low 39° 38° N/A 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:57 AM with 13:38 of sunlight, then sets at 7:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:10 AM with 14:46 of moolight, then sets at 10:56 PM

Lancaster Weather Report

2015 Boston Marathon Forecast: Rain and Wind in Store for Runners

April 18, 2015; 4:28 AM ET

The 119th Boston Marathon will take place on Monday, April 20, and runners set to take on the historic course will face cool rainy conditions. more >

Tue. Dust & Dander

Tue. Wind Maps