• Tonight

    Apr 21

    Lo 41°

    Clear

    Driving Weather
    • Precip
      35%
    • Hours of Precip
      0
    • Rain
      0 in
  • Wed

    Apr 22

    63°Lo 38°

    Afternoon showers

    Very Good for driving
    • Precip
      71%
    • Hours of Precip
      3.5
    • Rain
      0.18 in
    more
  • Thu

    Apr 23

    55°Lo 35°

    Cooler with sun and clouds

    Excellent for driving
    • Precip
      25%
    • Hours of Precip
      0
    • Rain
      0 in
    more
  • Fri

    Apr 24

    53°Lo 40°

    Breezy with periods of sun

    Excellent for driving
    • Precip
      19%
    • Hours of Precip
      0
    • Rain
      0 in
    more
  • Sat

    Apr 25

    61°Lo 42°

    A brief shower or two

    Very Good for driving
    • Precip
      56%
    • Hours of Precip
      2
    • Rain
      0.06 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
4am
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  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
T-storms
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 48° 50° 51° 53° 51° 53° 55° 57°
RealFeel® 40° 46° 49° 51° 50° 51° 55° 59°
Humidity 100% 97% 90% 85% 96% 93% 87% 81%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
61%
 
40%
 
34%
 
40%
 
29%
 
29%
 
29%
 
28%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 7 NNE 7 NW 7 NW 6 NW 5 NW 6 NW 6 NNW 6 NW
UV Index 0 0 0 0 0 1 1 2
Cloud Cover 100% 100% 99% 99% 99% 99% 97% 96%
Dew Point 48° 49° 49° 49° 50° 51° 51° 51°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 63° 62° N/A 74°
Low 41° 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

Boston: Cooler Air to Sweep Away Warmth This Week

April 21, 2015; 4:52 PM ET

Cooler air will push into the Boston area during the middle and latter part of the week. more >

Travel Weather Forecast

Apr 21, 2015; 5:49 PM ET United States travel weather forecast

Tue. Travel Weather

48 Hour Precipitation Forecast

Tue. Driving Weather