• Tonight

    May 27

    Lo 68°

    Mostly cloudy and warm

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Thu

    May 28

    85°Lo 58°

    Mostly cloudy with a t-storm

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

    May 29

    83°Lo 58°

    Partly sunny and less humid

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

    May 30

    85°Lo 62°

    Partly sunny and warm

    Low ragweed pollen levels
    • Precip
      21%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      47%
    more
  • Sun

    May 31

    69°Lo 48°

    Cooler with a few showers

    Ragweed Pollen Weather
    • Precip
      61%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      89%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
10am
11am 12pm 1pm 2pm 3pm 4pm 5pm
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Sunny
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 77° 80° 84° 85° 85° 87° 85° 83°
RealFeel® 79° 83° 87° 89° 87° 88° 85° 81°
Humidity 62% 57% 54% 51% 51% 49% 51% 53%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Rain
 
4%
 
4%
 
4%
 
5%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Wind (mph) 9 S 10 SW 12 S 14 SSW 14 SSW 15 SSW 16 SSW 16 SSW
UV Index 3 5 5 7 5 4 3 2
Cloud Cover 82% 76% 80% 40% 75% 83% 79% 81%
Dew Point 63° 64° 65° 65° 65° 66° 65° 64°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2014
High 87° 72° N/A 76°
Low 68° 49° N/A 48°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:15 AM with 14:58 of sunlight, then sets at 8:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:20 PM with 12:12 of moolight, then sets at 2:32 AM

Lancaster Weather Report

Boston: Major Cooldown to Arrive This Weekend

May 27, 2015; 4:57 PM ET

Spotty showers and locally heavy, gusty thunderstorms will join in with the warm, humid weather pattern through Thursday around the Boston area. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps