• Today

    Apr 21

    62°Lo 38°

    Rain, a thunderstorm

    At Risk weather for asthma
    • Hi
      RealFeel
      59°
    • UV
      2 - Low
    • Air Qual.
      Good
  • Wed

    Apr 22

    60°Lo 36°

    An afternoon shower or two

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

    Apr 23

    50°Lo 35°

    Clouds and sun with a shower

    Neutral weather for asthma
    • Hi
      RealFeel
      44°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    more
  • Fri

    Apr 24

    50°Lo 36°

    Breezy with periods of sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      48°
    • UV
      6 - High
    • Cloud
      Cover
      53%
    more
  • Sat

    Apr 25

    55°Lo 37°

    A brief shower or two

    Beneficial weather for asthma
    • Hi
      RealFeel
      53°
    • UV
      5 - Moderate
    • Cloud
      Cover
      69%
    more
Next Previous
Clear 43° Lo 38° RealFeel® 44° / 40°

N

E

S

W

  • Precipitation: 8%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 76%
  • Cloud Cover: 10%
  • Dew Point: 34° F
  • Visibility: 10 mi
4 mph

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 62° 60° N/A 73°
Low 38° 39° N/A 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:55 AM with 13:39 of sunlight, then sets at 7:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:08 AM with 14:47 of moolight, then sets at 10:55 PM

Derry Weather Report

Boston: Cooler Air to Sweep Away Warmth This Week

April 21, 2015; 4:52 AM ET

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

Tue. Air Quality

Tue. Asthma Risk

Tue. UV Index