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  • Tonight

    Jul 23

    Partly cloudy Lo 66°
  • Sun

    Jul 24

    Sunshine 89°Lo 64°
    more
  • Mon

    Jul 25

    Showers and a heavier t-storm 93°Lo 70°
    more
  • Tue

    Jul 26

    Mostly sunny and hot 90°Lo 65°
    more
  • Wed

    Jul 27

    Sunshine and patchy clouds 91°Lo 66°
    more
Next 8 hours >
  Sat
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10pm 11pm Sun
12am
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  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 78° 75° 74° 72° 71° 70° 69° 68°
RealFeel® 75° 74° 72° 71° 70° 69° 67° 66°
Humidity 61% 70% 73% 72% 76% 78% 77% 77%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
47%
 
40%
 
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) 13 NW 10 NW 8 NW 7 NW 6 NW 6 WNW 6 WNW 6 WNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 84% 46% 46% 46% 46% 11% 11% 11%
Dew Point 64° 65° 64° 63° 64° 63° 61° 61°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Jul 23

more Historical Weather Data >
  Today Normal Record 7/23/2015
High 93° 83° 101° (2011) 82°
Low 66° 60° 46° (1976) 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:29 AM with 14:47 of sunlight, then sets at 8:16 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:30 PM with 12:08 of moolight, then sets at 10:38 AM

Merrimack 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 >