• Thu

    Jul 9

    77°Lo 59°

    Partly sunny

    Good for stargazing
    • Cloud
      Cover
      34%
    • Precip
      17%
    • Hours of Precip
      0
    more
  • Fri

    Jul 10

    83°Lo 62°

    Intervals of clouds and sun

    Fair for stargazing
    • Cloud
      Cover
      71%
    • Precip
      11%
    • Hours of Precip
      0
  • Sat

    Jul 11

    83°Lo 63°

    Partly sunny and humid

    Poor for stargazing
    • Cloud
      Cover
      76%
    • Precip
      60%
    • Hours of Precip
      0.5
    more
  • Sun

    Jul 12

    84°Lo 63°

    Low clouds and humid

    Poor for stargazing
    • Cloud
      Cover
      60%
    • Precip
      41%
    • Hours of Precip
      1.5
    more
  • Mon

    Jul 13

    84°Lo 71°

    A thick cloud cover

    Poor for stargazing
    • Cloud
      Cover
      89%
    • Precip
      25%
    • Hours of Precip
      0
    more
Next Previous
Hi 83° RealFeel® 90° Precipitation 9%

Day

N

E

S

W

  • SE 6 mph
  • Gusts: 9 mph

Intervals of clouds and sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 8%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 62° RealFeel® 62° Precipitation 11%

Night

N

E

S

W

  • E 4 mph
  • Gusts: 7 mph

Mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 10

more Historical Weather Data >
  Today Normal Record 7/10/2014
High 83° 82° N/A 80°
Low 62° 60° N/A 61°

Solunar Information for Chelmsford, MA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:16 AM with 15:09 of sunlight, then sets at 8:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:33 AM with 13:27 of moolight, then sets at 2:00 PM

Wed, Jul 8
Last
Thu, Jul 16
New
Fri, Jul 24
First
Fri, Jul 31
Full

Chelmsford Weather Report

Boston: Dry Start to the Week Before Midweek Rain

July 4, 2015; 2:46 PM ET

Following a soggy start to the holiday weekend, drier weather will push in for the start of the new week. more >

Curiosity Tastes Mars

Dec 14, 2012; 5:00 AM ET The Mars Science Laboratory Rover 'Curiosity' continues its sampling and analyzing of the Martian surface.