• Today

    Jul 28

    95°Lo 70°

    A thunderstorm in spots

    Poor for stargazing
    • Cloud
      Cover
      88%
    • Precip
      25%
    • Hours of Precip
      0.5
    more
  • Fri

    Jul 29

    76°Lo 62°

    Rain and a t-storm; cooler

    Poor for stargazing
    • Cloud
      Cover
      86%
    • Precip
      25%
    • Hours of Precip
      8
  • Sat

    Jul 30

    85°Lo 62°

    Warmer with clouds and sun

    Very Good for stargazing
    • Cloud
      Cover
      45%
    • Precip
      14%
    • Hours of Precip
      0
    more
  • Sun

    Jul 31

    80°Lo 65°

    Mostly cloudy, showers around

    Poor for stargazing
    • Cloud
      Cover
      75%
    • Precip
      73%
    • Hours of Precip
      7
    more
  • Mon

    Aug 1

    78°Lo 61°

    Spotty morning showers

    Excellent for stargazing
    • Cloud
      Cover
      9%
    • Precip
      19%
    • Hours of Precip
      1
    more
Next Previous
Hi 76° RealFeel® 82° Precipitation 67%

Day

N

E

S

W

  • NNE 5 mph
  • Gusts: 8 mph

Cooler with periods of rain and a thunderstorm

  • Max UV Index: 2 (Low)
  • Thunderstorms: 30%
  • Precipitation: 0.85 in
  • Rain: 0.85 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 8 hrs
  • Hours of Rain: 8 hrs
Lo 62° RealFeel® 62° Precipitation 25%

Night

N

E

S

W

  • NNW 5 mph
  • Gusts: 7 mph

Mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 30%
  • 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 29

more Historical Weather Data >
  Today Normal Record 7/29/2015
High 76° 82° N/A 93°
Low 62° 61° N/A 62°

Solunar Information for Chelmsford, MA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:35 AM with 14:33 of sunlight, then sets at 8:08 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:38 AM with 14:41 of moolight, then sets at 4:19 PM

Tue, Aug 2
New
Wed, Aug 10
First
Thu, Aug 18
Full
Thu, Aug 25
Last

Chelmsford Weather Report

Heat wave to deteriorate across northeastern US as downpours unleash up to 2 inches of rain

July 28, 2016; 5:11 AM ET

As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave. more >

'Frankenfish' Ready for Market

Dec 7, 2012; 7:08 AM ET A new lab-created meat is waiting for FDA approval that is at once very different and just the same as your favorite fish dinner.

Fri. Stargazing