• Tonight

    Jul 23

    Lo 64°

    A thunderstorm in spots early

    Migraine Headache Weather
    • Hi
      RealFeel
      99°
    • UV
      5 - High
    • Cloud
      Cover
      40%
  • Sun

    Jul 24

    90°Lo 67°

    A full day of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      93°
    • UV
      5 - High
    • Cloud
      Cover
      5%
    more
  • Mon

    Jul 25

    95°Lo 70°

    A t-storm in the afternoon

    Beneficial weather for migraines
    • Hi
      RealFeel
      100°
    • UV
      5 - High
    • Cloud
      Cover
      58%
    more
  • Tue

    Jul 26

    92°Lo 67°

    Partly sunny and hot

    Beneficial weather for migraines
    • Hi
      RealFeel
      94°
    • UV
      5 - High
    • Cloud
      Cover
      26%
    more
  • Wed

    Jul 27

    90°Lo 66°

    Sunny to partly cloudy

    Neutral weather for migraines
    • Hi
      RealFeel
      97°
    • UV
      5 - High
    • Cloud
      Cover
      25%
    more
Next Previous
Next 8 hours >
  Sat
9pm
10pm 11pm Sun
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
T-storms
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 78° 77° 75° 73° 71° 69° 67° 64°
RealFeel® 73° 76° 74° 72° 71° 69° 66° 65°
Humidity 61% 65% 68% 70% 77% 81% 81% 87%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
51%
 
49%
 
34%
 
34%
 
22%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 8 NW 7 NW 6 NW 5 NW 4 WNW 4 WNW 4 WNW 4 WNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 84% 46% 46% 46% 46% 11% 11% 11%
Dew Point 63° 65° 64° 63° 63° 63° 61° 60°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Jul 23

more Historical Weather Data >
  Today Normal Record 7/23/2015
High 96° 83° N/A 81°
Low 64° 61° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:29 AM with 14:45 of sunlight, then sets at 8:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:29 PM with 12:08 of moolight, then sets at 10:37 AM

Chelmsford Weather Report

'Virtually no relief' from heat in store for eastern US into end of July

July 23, 2016; 5:05 PM ET

Much of the eastern United States will continue to swelter with above-average temperatures into the end of the month. more >

Sat. Migraine Headache

Sat. UV Index