• Tonight

    Sep 18

    Lo 41°

    Clear and chilly

    Asthma Weather
    • Hi
      RealFeel
      72°
    • UV
      4 - Moderate
    • Air Qual.
      Good
  • Fri

    Sep 19

    60°Lo 38°

    Mostly sunny and cooler

    Beneficial weather for asthma
    • Hi
      RealFeel
      62°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    more
  • Sat

    Sep 20

    69°Lo 57°

    Warmer

    Beneficial weather for asthma
    • Hi
      RealFeel
      66°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    more
  • Sun

    Sep 21

    78°Lo 56°

    Some sun, then clouds

    Beneficial weather for asthma
    • Hi
      RealFeel
      76°
    • UV
      4 - Moderate
    • Cloud
      Cover
      60%
    more
  • Mon

    Sep 22

    67°Lo 44°

    Periods of sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      66°
    • UV
      4 - Moderate
    • Cloud
      Cover
      70%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
11am
12pm 1pm 2pm 3pm 4pm 5pm 6pm
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Forecast
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Sunny
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 66° 67° 70° 70° 71° 71° 69° 66°
RealFeel® 67° 70° 72° 71° 71° 69° 66° 62°
Humidity 50% 46% 43% 42% 41% 42% 46% 52%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Rain
 
0%
 
0%
 
0%
 
7%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Wind (mph) 6 WNW 6 NNE 5 NNW 6 NW 8 NW 8 WNW 7 WNW 6 WNW
UV Index 3 4 4 3 3 2 1 0
Cloud Cover 46% 46% 68% 66% 48% 76% 53% 51%
Dew Point 46° 46° 47° 46° 46° 47° 47° 48°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 71° 73° N/A 75°
Low 41° 50° N/A 42°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 12:23 of sunlight, then sets at 6:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:14 AM with 14:31 of moolight, then sets at 3:45 PM

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Lancaster Weather Report

Boston: Remainder of Week to Be Dry, Cool

September 18, 2014; 5:00 PM ET

Rainfall will continue to be scarce around Boston this week, but cool air will be plentiful. more >

The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Thu. Air Quality

Thu. Asthma Risk

Thu. UV Index