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  • Today

    Jul 27

    Mostly sunny and hot 94°Lo 68°
  • Thu

    Jul 28

    A p.m. t-storm in spots 95°Lo 70°
    more
  • Fri

    Jul 29

    Not as hot with a t-storm 85°Lo 63°
    more
  • Sat

    Jul 30

    Intervals of clouds and sun 85°Lo 61°
    more
  • Sun

    Jul 31

    A couple of thunderstorms 84°Lo 62°
    more
Next 8 hours >
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Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 74° 79° 82° 86° 89° 91° 93° 94°
RealFeel® 77° 85° 90° 95° 100° 102° 102° 102°
Humidity 68% 59% 51% 47% 45% 42% 39% 38%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
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Snow
 
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Ice
 
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  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 2 NW 2 NW 2 NW 2 WNW 4 WNW 4 W 5 WSW 5 SW
UV Index 1 3 4 6 7 7 7 6
Cloud Cover 13% 11% 11% 11% 11% 11% 11% 11%
Dew Point 63° 64° 63° 64° 65° 65° 64° 65°
Middle Grid line 95 F 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 - Jul 27

more Historical Weather Data >
  Today Normal Record 7/27/2015
High 94° 82° N/A 85°
Low 68° 61° N/A 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:33 AM with 14:37 of sunlight, then sets at 8:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:13 AM with 13:52 of moolight, then sets at 2:05 PM

Chelmsford Weather Report

Dangerous heat wave to persist in northeastern US much of this week

July 27, 2016; 4:00 AM ET

A stifling heat wave will remain entrenched across the Northeast much of this week, despite a brief reprieve in humidity for some. more >