• Today

    Apr 19

    61°Lo 38°

    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 50°

    Becoming windier with rain

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

    Apr 21

    68°Lo 39°

    Warmer with a shower or two

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

    Apr 22

    61°Lo 39°

    Mostly cloudy and breezy

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      78%
    more
  • Thu

    Apr 23

    55°Lo 34°

    Cloudy and breezy

    Ragweed Pollen Weather
    • Precip
      21%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      95%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Cloudy
Cloudy
Cloudy
Temp (°F) 38° 38° 38° 38° 39° 40° 42° 43°
RealFeel® 39° 38° 38° 36° 35° 35° 37° 36°
Humidity 68% 69% 72% 73% 73% 72% 71% 68%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
1%
 
1%
 
2%
 
2%
 
5%
 
24%
 
24%
 
29%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 4 SE 4 ESE 5 E 6 E 7 ESE 9 ESE 9 ESE 13 ESE
UV Index 0 0 0 0 0 1 1 2
Cloud Cover 45% 45% 45% 45% 45% 97% 96% 95%
Dew Point 29° 29° 30° 30° 31° 32° 33° 33°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2014
High 51° 61° N/A 59°
Low 50° 38° N/A 29°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:58 AM with 13:36 of sunlight, then sets at 7:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:24 AM with 14:30 of moolight, then sets at 9:54 PM

Lancaster Weather Report

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

April 19, 2015; 6:24 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 and rainy conditions. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps