• Today

    Feb 11

    28°Lo 5°

    Colder with snow showers

    Poor at the beach or pool
    • UV
      2 - Low
    • Cloud
      Cover
      93%
    • Precip
      61%
    more
  • Fri

    Feb 12

    23°Lo 13°

    Cold with clouds and sun

    Poor at the beach or pool
    • UV
      2 - Low
    • Cloud
      Cover
      49%
    • Precip
      16%
  • Sat

    Feb 13

    17°Lo -6°

    A snow squall in the morning

    Poor at the beach or pool
    • UV
      2 - Low
    • Cloud
      Cover
      88%
    • Precip
      56%
    more
  • Sun

    Feb 14

    11°Lo -1°

    Frigid with clouds and sun

    Poor at the beach or pool
    • UV
      4 - Moderate
    • Cloud
      Cover
      46%
    • Precip
      6%
    more
  • Mon

    Feb 15

    27°Lo 17°

    Clouds and sun; not as cold

    Poor at the beach or pool
    • UV
      2 - Low
    • Cloud
      Cover
      61%
    • Precip
      18%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
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  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Mostly Cloudy
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Sunny
Temp (°F) 12° 11° 10° 10°
RealFeel®
Humidity 56% 58% 59% 60% 62% 62% 65% 73%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
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0%
Snow
 
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Ice
 
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  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 7 WNW 7 WNW 6 WNW 6 WNW 6 W 5 W 5 W 5 W
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 76% 26% 26% 26% 26% 26% 26% 0%
Dew Point -1° -1° -2° -2° -2° -3° -3° -2°
Middle Grid line 15 F Middle Grid line 10 F Middle Grid line 5 F Middle Grid line 0 F

Riverside Tide Table - Feb 12

See all tide tables >
High 3:41 AM 6.2 ft
Low 10:52 AM -0.4 ft
High 4:05 PM 6.4 ft
Low 11:19 PM -0.5 ft

Temperature History - Feb 12

more Historical Weather Data >
  Today Normal Record 2/12/2015
High 23° 36° N/A 21°
Low 13° 18° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:47 AM with 10:26 of sunlight, then sets at 5:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:07 AM with 13:10 of moolight, then sets at 10:17 PM

Londonderry Weather Report

Boston: Polar vortex to smack region during Valentine's Day weekend

February 11, 2016; 2:14 AM ET

The coldest air of the winter and perhaps during all of last winter will plunge across the Boston area during Valentine's Day weekend. more >

Fri. Beach & Pool

Fri. UV Index

Fri. Wind Maps