• Today

    Apr 16

    44°Lo 25°

    Clearing and becoming windier

    At Risk weather for migraines
    • Hi
      RealFeel
      35°
    • UV
      6 - High
    • Cloud
      Cover
      17%
    more
  • Thu

    Apr 17

    45°Lo 28°

    Chilly with sunshine

    Neutral weather for migraines
    • Hi
      RealFeel
      37°
    • UV
      6 - High
    • Cloud
      Cover
      27%
    more
  • Fri

    Apr 18

    52°Lo 34°

    Partly sunny

    Neutral weather for migraines
    • Hi
      RealFeel
      54°
    • UV
      6 - High
    • Cloud
      Cover
      26%
    more
  • Sat

    Apr 19

    54°Lo 37°

    Mostly cloudy, showers around

    Beneficial weather for migraines
    • Hi
      RealFeel
      56°
    • UV
      5 - Moderate
    • Cloud
      Cover
      78%
  • Sun

    Apr 20

    58°Lo 35°

    Intervals of clouds and sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      58°
    • UV
      6 - High
    • Cloud
      Cover
      51%
    more
Next Previous
Hi 54° RealFeel® 56° Precipitation 71%

Day

N

E

S

W

  • N 4 mph
  • Gusts: 8 mph

Mostly cloudy with a couple of showers

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.25 in
  • Rain: 0.25 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs
Lo 37° RealFeel® 34° Precipitation 56%

Night

N

E

S

W

  • NW 4 mph
  • Gusts: 9 mph

Occasional evening rain and drizzle; otherwise, mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • 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

Temperature History - Apr 19

more Historical Weather Data >
  Today Normal Record 4/19/2013
High 54° 60° N/A 76°
Low 37° 38° N/A 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:58 AM with 13:34 of sunlight, then sets at 7:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at --:-- with of moolight, then sets at 9:10 AM

Top Story

Chelmsford Weather Report

Boston: Drier, Chillier for Wednesday

April 16, 2014; 4:30 AM ET

Tuesday's soaking, wind-driven rain will be replaced by drier weather on Wednesday, but it will be chilly. more >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Sat. Migraine Headache

Sat. UV Index