Point Forecast: Merrimack NH
 42.86N 71.49W (Elev. 118 ft)
Last Update: 7:24 pm EDT Jul 15, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
20ft Wind  
Vent Rate (x1000 mph-ft)
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°F)888481797776757372717070737680848789909293939391
Dewpoint (°F)666972727171717070706969717070707070707070707070
Heat Index (°F)908885797776757683889294969899999997
Surface Wind (mph)221111110000000122233555
Wind DirSWSWSSSSSSSWNNNNNNSSSSWSWSWSWSWS
Gust
Sky Cover (%)18131294215912151614126646910910517
Precipitation Potential (%)921100000000000000000000
Relative Humidity (%)486174798285879093979797938272635754524947474750
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/17
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°F)898582807877767574747374767779818385868888888887
Dewpoint (°F)707070707070707070707071737475757676767676767676
Heat Index (°F)9490868378777675767779879194969999999998
Surface Wind (mph)533322222222233333555556
Wind DirSSSSSSSSSSSSSWSSWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)211926415660656972757776757471696664636157545047
Precipitation Potential (%)19999992323232323232330384553605555505049
Relative Humidity (%)546167727679828487879090909088828075726868686870
Rain--------------SChcSChcSChcSChcSChcSChcSChcChcChcChcChcLklyLklyLklyChcChcChc
Thunder--------------------------SChcSChcSChcSChcSChcSChcChcChcChcChcChc

Additional Forecasts and Information
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