• Today

    Aug 22

    70°Lo 57°

    Mostly cloudy

    Frizz Forecast Weather
    • Wind
      Gust
      13 mph
    • Precip
      35%
    • Hours of Precip
      0.5
    more
  • Sat

    Aug 23

    74°Lo 55°

    Clouds breaking for some sun

    Frizz Forecast Weather
    • Wind
      Gust
      9 mph
    • Precip
      40%
    • Hours of Precip
      1.5
    more
  • Sun

    Aug 24

    79°Lo 57°

    Mostly sunny and pleasant

    Frizz Forecast Weather
    • Wind
      Gust
      6 mph
    • Precip
      4%
    • Hours of Precip
      0
  • Mon

    Aug 25

    84°Lo 60°

    Sunny and pleasantly warm

    Frizz Forecast Weather
    • Wind
      Gust
      8 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Tue

    Aug 26

    85°Lo 62°

    Mostly sunny and pleasant

    Frizz Forecast Weather
    • Wind
      Gust
      9 mph
    • Precip
      5%
    • Hours of Precip
      0
    more
Next Previous
Hi 79° RealFeel® 83° Precipitation 4%

Day

N

E

S

W

  • ENE 4 mph
  • Gusts: 6 mph

Pleasant with sunshine and patchy clouds

  • Max UV Index: 6 (High)
  • 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 57° RealFeel® 55° Precipitation 5%

Night

N

E

S

W

  • S 2 mph
  • Gusts: 4 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 24

more Historical Weather Data >
  Today Normal Record 8/24/2013
High 79° 80° 92° (2007) 79°
Low 57° 56° 37° (1971) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:01 AM with 13:33 of sunlight, then sets at 7:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:10 AM with 13:39 of moolight, then sets at 6:49 PM

Top Story

North Chelmsford Weather Report

Another Cool Weekend for Boston, But Warmer Air Awaits

August 22, 2014; 3:29 PM ET

This weekend will feel more like September around Boston, but the return of summer warmth is on the horizon for next week. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Sun. Hair Frizz

Sun. Wind Maps

Sun. UV Index