• Tonight

    Jul 23

    Lo 68°

    Thunderstorms, strong early

    Sinus Headache Weather
    • Hi
      RealFeel
      97°
    • UV
      7 - High
    • Cloud
      Cover
      33%
  • Thu

    Jul 24

    75°Lo 56°

    Partly sunny and cooler

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      81°
    • UV
      6 - High
    • Cloud
      Cover
      47%
    more
  • Fri

    Jul 25

    83°Lo 58°

    Mostly sunny and beautiful

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      89°
    • UV
      7 - High
    • Cloud
      Cover
      11%
    more
  • Sat

    Jul 26

    87°Lo 65°

    Mostly sunny and beautiful

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      88°
    • UV
      7 - High
    • Cloud
      Cover
      11%
    more
  • Sun

    Jul 27

    85°Lo 67°

    Some sun, a t-storm possible

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      88°
    • UV
      5 - Moderate
    • Cloud
      Cover
      68%
    more
Next Previous
Hi 91° RealFeel® 97° Precipitation 35%

Day

N

E

S

W

  • SW 9 mph
  • Gusts: 20 mph

Partly sunny, hot and humid, becoming breezy this afternoon

  • Max UV Index: 7 (High)
  • Thunderstorms: 91%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 68° RealFeel® 65° Precipitation 85%

Night

N

E

S

W

  • NW 5 mph
  • Gusts: 14 mph

Thunderstorms, strong early; mainly cloudy and humid

  • Max UV Index: N/A
  • Thunderstorms: 91%
  • Precipitation: 0.83 in
  • Rain: 0.83 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 7.5 hrs
  • Hours of Rain: 7.5 hrs

Temperature History - Jul 23

more Historical Weather Data >
  Today Normal Record 7/23/2013
High 91° 83° 101° (2011) 77°
Low 68° 60° 46° (1976) 68°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:28 AM with 14:47 of sunlight, then sets at 8:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:46 AM with 14:55 of moolight, then sets at 5:41 PM

Top Story

North Chelmsford Weather Report

Boston: Another Cooldown to Follow Midweek Storms

July 23, 2014; 9:35 PM ET

Fresh cooler and less humid air will settle over the Boston area for Thursday and Friday. more >

Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Wed. Sinus Headache

Wed. UV Index