• Tonight

    May 22

    Lo 38°

    Clear, brisk and chilly

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sat

    May 23

    66°Lo 46°

    Mostly sunny and breezy

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

    May 24

    80°Lo 56°

    Mostly sunny; breezy, warmer

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

    May 25

    81°Lo 63°

    Intervals of clouds and sun

    Low ragweed pollen levels
    • Precip
      14%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      46%
    more
  • Tue

    May 26

    86°Lo 66°

    An afternoon t-storm; warmer

    Ragweed Pollen Weather
    • Precip
      51%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      95%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 52° 53° 55° 58° 59° 61° 64° 66°
RealFeel® 48° 51° 55° 59° 61° 62° 66° 67°
Humidity 30% 25% 22% 21% 20% 20% 18% 17%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 14 W 14 WNW 15 WNW 15 WNW 15 W 16 W 16 W 16 W
UV Index 3 5 6 7 8 7 6 5
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 21° 18° 17° 18° 18° 19° 20° 20°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2014
High 66° 71° N/A 62°
Low 46° 48° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:18 AM with 14:51 of sunlight, then sets at 8:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:31 AM with 14:03 of moolight, then sets at 12:34 AM

Lancaster Weather Report

Boston: Temperatures to Ride Roller Coaster Into Memorial Day

May 22, 2015; 7:20 PM ET

Temperatures will remain on a roller coaster ride around the Boston area through the Memorial Day holiday weekend. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps