Point Forecast: North Chelmsford MA
 42.62N 71.37W (Elev. 148 ft)
Last Update: 6:05 pm EDT Jul 13, 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)
Dispersion Index
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date07/1307/14
Hour (EDT)202122230001020304050607080910111213141516171819
Temperature (°F)777572717069686968686869717476788182848484838380
Dewpoint (°F)686868676867676766676767696970717272727273737373
Heat Index (°F)777576788587909090898984
Surface Wind (mph)655533222222335566666665
Wind DirSSSSSSSSSSSSSSSSSSSSSSSSW
Gust
Sky Cover (%)506867767693929394929494898772746366535958595860
Precipitation Potential (%)44334455566788771320263339464238
Relative Humidity (%)747987879393979393979793938482797472676770727279
Rain----------------------------------SChcSChcChcChcChcChcChc
Thunder------------------------------------SChcChcChcChcChcChc

Date07/15
Hour (EDT)202122230001020304050607080910111213141516171819
Temperature (°F)787674747473727171717172747780838587888989888785
Dewpoint (°F)727373727271717171717172727273737372727271717172
Heat Index (°F)78767784899294959595949391
Surface Wind (mph)333222222222222223335553
Wind DirSWSWSWSWSWSWSWSWSWSWSWWWWWWWSWSWSWSWSWSWSW
Gust
Sky Cover (%)657076858077737475777268635751443833282828282219
Precipitation Potential (%)343026222017151516161616171717161616161616161412
Relative Humidity (%)829097939495979910010010098938678726662595757576064
RainChcChcChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChc----
ThunderSChcSChcSChc------------------------------SChcSChcSChcSChc----

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