• Today

    Dec 20

    36°Lo 30°

    Turning cloudy

    Poor for lawn mowing
    • Hours of Precip
      3
    • Precip
      25%
    • Hi
      RealFeel
      31°
    more
  • Sun

    Dec 21

    37°Lo 30°

    A little snow at times

    Poor for lawn mowing
    • Hours of Precip
      3.5
    • Precip
      54%
    • Hi
      RealFeel
      35°
  • Mon

    Dec 22

    41°Lo 35°

    Some sun, then clouds

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      39°
    more
  • Tue

    Dec 23

    49°Lo 43°

    Mainly cloudy and damp

    Poor for lawn mowing
    • Hours of Precip
      3.5
    • Precip
      44%
    • Hi
      RealFeel
      41°
    more
  • Wed

    Dec 24

    55°Lo 46°

    Windy and mild with rain

    Poor for lawn mowing
    • Hours of Precip
      17.5
    • Precip
      84%
    • Hi
      RealFeel
      41°
    more
Next Previous
Hi 37° RealFeel® 35° Precipitation 54%

Day

N

E

S

W

  • NNE 6 mph
  • Gusts: 8 mph

A little snow at times, accumulating a coating to an inch; storm total snowfall 1-2 inches

  • Max UV Index: 1 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0.09 in
  • Rain: 0 in
  • Snow: 0.7 in
  • Ice: 0 in
  • Hours of Precipitation: 3.5 hrs
  • Hours of Rain: 0 hrs
Lo 30° RealFeel® 28° Precipitation 14%

Night

N

E

S

W

  • N 4 mph
  • Gusts: 6 mph

Mainly 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 - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 37° 39° 62° (1957) 54°
Low 30° 26° -5° (1942) 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:10 AM with 9:05 of sunlight, then sets at 4:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:22 AM with 9:58 of moolight, then sets at 4:20 PM

Somerville Weather Report

Boston: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 20, 2014; 4:59 AM ET

Following benign weather this weekend, a major storm will affect Boston, much of the East and Midwest on Christmas Eve. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Sun. Overnight Freeze

Sun. Degree Days

Sun. Evapotranspiration