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Weather in Merrimack, New Hampshire, USA

Now
45 °F

Partly sunny.


Feels Like: 37 °F
Forecast: 50 / 37 °F
Wind: 18 mph from Northwest

Location: Manchester Airport
Current Time: Mar 21, 2026 at 1:03:57 pm
Latest Report: Mar 21, 2026 at 11:53 am
Visibility: 10 mi
Pressure: 29.91 "Hg
Humidity: 53%
Dew Point: 29 °F
Location of MerrimackLocation

Upcoming 5 hours

Now2:00 pm3:00 pm4:00 pm5:00 pm6:00 pm
45 °F49 °F49 °F49 °F48 °F47 °F

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Forecast for the next 48 hours

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 SaturdaySundayMonday
 AfternoonEveningNightMorningAfternoonEveningNight
Forecast
Temperature49 °F40 °F37 °F35 °F42 °F39 °F34 °F
Mostly cloudy.Drizzle. Overcast.Light mixture of precip. Overcast.Light snow. Overcast.Rain. Overcast.Rain. Overcast.Snow. Overcast.
Feels Like45 °F37 °F37 °F29 °F38 °F34 °F27 °F
Wind Speed11 mph5 mph3 mph7 mph5 mph8 mph8 mph
Wind DirectionNNW
NW
ESE
ESE
N
N
NNE
Humidity31%44%54%76%74%84%85%
Dew Point20 °F20 °F22 °F28 °F34 °F35 °F30 °F
Visibility8 mi6 mi4 mi0 mi3 mi4 mi2 mi
Probability of Precipitation3%3%25%54%73%60%48%
Amount of Rain0.00"0.01"0.02"0.14"0.32"0.08"0.01"
Amount of Snow0.00"0.00"0.01"0.40"0.00"0.00"0.74"
* Updated Saturday, March 21, 2026 9:42:40 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

46 °F

Nashua / Boire Field: (6 mi)

Overcast. (1 hour ago)

48 °F

Lawrence Municipal Airport: (21 mi)

Sunny. (1 hour ago)

41 °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