• Thu

    May 21

    79°Lo 57°

    Clouds, a little rain; warm

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      79°
    • Wind
      Speed
      9 mph
  • Fri

    May 22

    69°Lo 52°

    Partly sunny and colder

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      59°
    • Hi
      RealFeel
      70°
    • Wind
      Speed
      13 mph
    more
  • Sat

    May 23

    64°Lo 51°

    Abundant sunshine

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      70°
    • Wind
      Speed
      8 mph
    more
  • Sun

    May 24

    68°Lo 55°

    Brilliant sunshine

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      78°
    • Wind
      Speed
      6 mph
    more
  • Mon

    May 25

    69°Lo 55°

    Increasing cloudiness

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      77°
    • Wind
      Speed
      5 mph
    more
Next Previous
Hi 79° RealFeel® 79° Precipitation 56%

Day

N

E

S

W

  • WSW 9 mph
  • Gusts: 16 mph

Considerable clouds with a little rain; warm

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 9%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 57° RealFeel® 53° Precipitation 7%

Night

N

E

S

W

  • WNW 9 mph
  • Gusts: 17 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 - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2014
High 79° 68° 93° (1921) 65°
Low 57° 51° 41° (1907) 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:18 AM with 14:47 of sunlight, then sets at 8:05 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:33 AM with 14:42 of moolight, then sets at 11:15 PM

Boston Weather Report

Boston: Summerlike Warmth to Return This Weekend

May 6, 2015; 5:17 AM ET

Following a cooldown at midweek, warmth will return to the Boston area by this weekend. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.