• Sun

    Aug 9

    78°Lo 59°

    Clouds breaking and pleasant

    Watch for hair frizz
    • Wind
      Gust
      7 mph
    • Precip
      55%
    • Hours of Precip
      0.5
    more
  • Mon

    Aug 10

    80°Lo 60°

    Thunderstorms possible

    Advisory for hair frizz
    • Wind
      Gust
      9 mph
    • Precip
      63%
    • Hours of Precip
      2.5
    more
  • Tue

    Aug 11

    79°Lo 61°

    Chance of a thunderstorm

    Warning for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      64%
    • Hours of Precip
      1.5
    more
  • Wed

    Aug 12

    84°Lo 56°

    Plenty of sunshine

    Unlikely for hair frizz
    • Wind
      Gust
      4 mph
    • Precip
      3%
    • Hours of Precip
      0
  • Thu

    Aug 13

    78°Lo 60°

    Mostly sunny

    Unlikely for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
Next Previous
Hi 84° RealFeel® 86° Precipitation 5%

Day

N

E

S

W

  • N 9 mph
  • Gusts: 22 mph

Plenty of sunshine

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 56° RealFeel® 58° Precipitation 3%

Night

N

E

S

W

  • NE 1 mph
  • Gusts: 4 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 12

more Historical Weather Data >
  Today Normal Record 8/12/2014
High 84° 82° N/A 82°
Low 56° 62° N/A 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:04 of sunlight, then sets at 7:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:57 AM with 14:31 of moolight, then sets at 6:28 PM

Londonderry Weather Report

PHOTOS: Severe Weather Slams Boston

August 5, 2015; 12:54 AM ET

A line of violent thunderstorms tore across Massachusetts, including the Boston area, Tuesday afternoon. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.