• Tonight

    Aug 30

    Lo 64°

    Partly cloudy

    Migraine Headache Weather
    • Hi
      RealFeel
      84°
    • UV
      4 - Moderate
    • Cloud
      Cover
      66%
    more
  • Mon

    Aug 31

    89°Lo 64°

    Sunshine, warm and humid

    Neutral weather for migraines
    • Hi
      RealFeel
      90°
    • UV
      5 - High
    • Cloud
      Cover
      9%
  • Tue

    Sep 1

    85°Lo 62°

    Humid with plenty of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      92°
    • UV
      5 - High
    • Cloud
      Cover
      8%
    more
  • Wed

    Sep 2

    91°Lo 66°

    Mostly sunny and hot

    Neutral weather for migraines
    • Hi
      RealFeel
      96°
    • UV
      5 - High
    • Cloud
      Cover
      19%
    more
  • Thu

    Sep 3

    88°Lo 64°

    Partly sunny, a t-storm; warm

    Neutral weather for migraines
    • Hi
      RealFeel
      100°
    • UV
      4 - Moderate
    • Cloud
      Cover
      41%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Sunny
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 75° 79° 83° 86° 87° 88° 88° 89°
RealFeel® 78° 82° 87° 90° 90° 90° 90° 90°
Humidity 71% 60% 53% 51% 46% 44% 43% 43%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
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0%
Snow
 
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Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 6 W 7 W 8 W 9 W 10 W 12 WSW 12 W 12 W
UV Index 2 3 5 6 6 5 4 3
Cloud Cover 0% 0% 4% 12% 20% 25% 23% 16%
Dew Point 65° 64° 65° 66° 64° 64° 64° 64°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 89° 78° N/A 82°
Low 64° 57° N/A 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:09 AM with 13:13 of sunlight, then sets at 7:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:33 PM with 13:00 of moolight, then sets at 9:33 AM

Chelmsford Weather Report

Boston: Sizzling Heat to Start September

August 30, 2015; 8:06 PM ET

September will get off to a hot and humid start around Boston this week. more >

Mon. Migraine Headache

Mon. UV Index