• Tonight

    Sep 19

    Lo 40°

    Mostly clear and cold

    Bicycling Weather
    • Precip
      4%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
  • Sat

    Sep 20

    72°Lo 60°

    Partly sunny; breezy, warmer

    Very Good for biking
    • Precip
      8%
    • Hours of Precip
      0
    • Wind
      Gust
      26 mph
    more
  • Sun

    Sep 21

    79°Lo 59°

    Warmer with variable clouds

    Excellent for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
    more
  • Mon

    Sep 22

    73°Lo 44°

    Breezy with periods of sun

    Very Good for biking
    • Precip
      17%
    • Hours of Precip
      0
    • Wind
      Gust
      25 mph
    more
  • Tue

    Sep 23

    70°Lo 45°

    Partly sunny

    Excellent for biking
    • Precip
      12%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
    more
Next Previous
Hi 58° RealFeel® 58° Precipitation 4%

Day

N

E

S

W

  • E 8 mph
  • Gusts: 14 mph

Mostly sunny and cooler

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 40° RealFeel® 38° Precipitation 14%

Night

N

E

S

W

  • N 3 mph
  • Gusts: 8 mph

Clear to partly cloudy and cold

  • 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 - Sep 19

more Historical Weather Data >
  Today Normal Record 9/19/2013
High 58° 72° N/A 78°
Low 40° 50° N/A 42°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 12:20 of sunlight, then sets at 6:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:07 AM with 14:10 of moolight, then sets at 4:17 PM

Top Story

Arlington Weather Report

Boston: September Temperature Roller Coaster to Continue

September 19, 2014; 11:02 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Boston. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.