• Today

    Apr 17

    47°Lo 26°

    Mostly sunny and chilly

    Very High indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
  • Fri

    Apr 18

    54°Lo 32°

    Partly sunny and warmer

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

    Apr 19

    61°Lo 33°

    Mostly cloudy

    High indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sun

    Apr 20

    59°Lo 34°

    Intervals of clouds and sun

    High indoor dust & dander levels
    • Precip
      6%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      46%
    more
  • Mon

    Apr 21

    64°Lo 41°

    Partial sunshine

    High indoor dust & dander levels
    • Precip
      14%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      41%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
12pm
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  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 41° 42° 44° 46° 47° 47° 45° 43°
RealFeel® 40° 41° 43° 46° 45° 43° 40° 37°
Humidity 32% 31% 30% 28% 27% 27% 30% 35%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Rain
 
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Snow
 
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Ice
 
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  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Wind (mph) 11 NE 11 NE 11 ENE 10 ENE 9 E 9 E 8 E 7 E
UV Index 6 6 6 5 3 2 1 0
Cloud Cover 17% 12% 27% 26% 26% 26% 26% 26%
Dew Point 13° 13° 14° 15° 14° 14° 16° 17°
Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Apr 17

more Historical Weather Data >
  Today Normal Record 4/17/2013
High 47° 60° N/A 67°
Low 26° 37° N/A 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:03 AM with 13:27 of sunlight, then sets at 7:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:16 PM with 10:01 of moolight, then sets at 8:17 AM

Top Story

Lancaster Weather Report

Boston: Chill to Ease Slowly by Easter Weekend

April 17, 2014; 4:37 AM ET

The return of more seasonable temperatures to Boston will coincide with this Easter weekend. more >

Is it a Cold or the Flu?

Apr 7, 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?

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps