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  • Tonight

    Feb 11

    Partly cloudy and frigid Lo 7°
    more
  • Fri

    Feb 12

    Sun mixing with clouds; cold 24°Lo 13°
  • Sat

    Feb 13

    A snow squall in the morning 19°Lo -3°
    more
  • Sun

    Feb 14

    Mostly sunny and very cold 14°Lo -6°
    more
  • Mon

    Feb 15

    Turning cloudy; not as cold 25°Lo 13°
    more
Hi 24° RealFeel® 22° Precipitation 16%

Day

N

E

S

W

  • SSW 7 mph
  • Gusts: 16 mph

Cold with sunshine mixing with some clouds

  • Max UV Index: 3 (Moderate)
  • 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 13° RealFeel® 3° Precipitation 55%

Night

N

E

S

W

  • SW 5 mph
  • Gusts: 10 mph

Considerable cloudiness with a flurry or heavier squall late, accumulating a coating to an inch

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0.02 in
  • Rain: 0 in
  • Snow: 0.4 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0 hrs

Temperature History - Feb 12

more Historical Weather Data >
  Today Normal Record 2/12/2015
High 24° 37° N/A 25°
Low 13° 19° N/A -3°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:46 AM with 10:27 of sunlight, then sets at 5:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:07 AM with 13:09 of moolight, then sets at 10:16 PM

Waltham Weather Report

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

February 11, 2016; 6:07 PM 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 >