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Weather in Merrimack, New Hampshire, USA

Now
42 °F

Overcast.


Feels Like: 35 °F
Forecast: 51 / 36 °F
Wind: 15 mph from Northwest

Location: Manchester Airport
Current Time: Mar 21, 2026 at 9:37:49 am
Latest Report: Mar 21, 2026 at 8:53 am
Visibility: 10 mi
Pressure: 29.85 "Hg
Humidity: 76%
Dew Point: 35 °F
Location of MerrimackLocation

Upcoming 5 hours

Now10:00 am11:00 am12:00 pm1:00 pm2:00 pm
42 °F43 °F45 °F47 °F48 °F49 °F

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Forecast for the next 48 hours

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 SaturdaySunday
 MorningAfternoonEveningNightMorningAfternoonEvening
Forecast
Temperature40 °F50 °F40 °F36 °F36 °F47 °F40 °F
Sprin­kles. Mostly cloudy.Scatt­erred clouds.Sprin­kles. Overcast.Light snow. Overcast.Light snow. Overcast.Rain. Overcast.Rain. Overcast.
Feels Like34 °F45 °F38 °F34 °F32 °F44 °F36 °F
Wind Speed9 mph11 mph4 mph4 mph5 mph6 mph6 mph
Wind DirectionNW
NNW
NNW
ESE
ESE
NNW
N
Humidity70%30%43%58%80%71%81%
Dew Point31 °F20 °F19 °F23 °F31 °F38 °F35 °F
Visibility4 mi7 mi6 mi3 mi0 mi1 mi3 mi
Probability of Precipitation22%3%3%33%56%65%54%
Amount of Rain0.01"0.00"0.01"0.02"0.09"0.13"0.06"
Amount of Snow0.00"0.00"0.00"0.09"0.10"0.00"0.00"
* Updated Saturday, March 21, 2026 3:42:42 am Merrimack time - Weather by CustomWeather, © 2026

14 day forecast, day-by-dayHour-by-hour forecast for next week

Yesterday's weather

Overcast. 55 / 27 °F
Humidity: 65%. Wind: 7 mph from South

More weather last week

Currently at nearby stations

43 °F

Nashua / Boire Field: (6 mi)

More clouds than sun.

42 °F

Lawrence Municipal Airport: (21 mi)

Mostly cloudy.

40 °F

Concord Municipal Airport: (23 mi)

Overcast.

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Forecast for the next 2 weeks

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Detailed forecast for 14 days