• Tonight

    Sep 1

    Lo 61°

    Mainly clear

    Hair Frizz Weather
    • Wind
      Gust
      9 mph
    • Precip
      9%
    • Hours of Precip
      0
  • Wed

    Sep 2

    92°Lo 67°

    Mostly sunny and hot

    Advisory for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Thu

    Sep 3

    89°Lo 63°

    Some sun with a thunderstorm

    Advisory for hair frizz
    • Wind
      Gust
      6 mph
    • Precip
      57%
    • Hours of Precip
      2
    more
  • Fri

    Sep 4

    74°Lo 52°

    Sunny and cooler but pleasant

    Watch for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      8%
    • Hours of Precip
      0
    more
  • Sat

    Sep 5

    80°Lo 55°

    Plenty of sunshine

    Watch for hair frizz
    • Wind
      Gust
      5 mph
    • Precip
      4%
    • Hours of Precip
      0
    more
Next Previous
Hi 84° RealFeel® 88° Precipitation 9%

Day

N

E

S

W

  • E 6 mph
  • Gusts: 9 mph

Mostly sunny

  • Max UV Index: 5 (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 61° RealFeel® 62° Precipitation 10%

Night

N

E

S

W

  • SSW 2 mph
  • Gusts: 8 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 - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2014
High 84° 78° N/A 87°
Low 61° 56° N/A 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:10 AM with 13:10 of sunlight, then sets at 7:20 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:11 PM with 13:34 of moolight, then sets at 10:45 AM

North Chelmsford Weather Report

Boston: Late-Week Front to Slash Summer Temperatures

September 1, 2015; 9:00 PM ET

Wednesday and Thursday will bring weather more common for early July rather than early September, but the summer heat will come to an end by the weekend. 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.

Tue. Hair Frizz

Tue. Wind Maps

Tue. UV Index