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)222300010203040506070809101112131415161718192021
Temperature (°F)727170696869686868697174767881828484848383807876
Dewpoint (°F)686768676767666767676969707172727272737373737273
Heat Index (°F)767885879090908989847876
Surface Wind (mph)553322222233556666666533
Wind DirSSSSSSSSSSSSSSSSSSSSSSWSWSW
Gust
Sky Cover (%)677676939293949294948987727463665359585958606570
Precipitation Potential (%)3344555667887713202633394642383430
Relative Humidity (%)878793939793939797939384827974726767707272798290
Rain------------------------------SChcSChcChcChcChcChcChcChcChc
Thunder--------------------------------SChcChcChcChcChcChcSChcSChc

Date07/15
Hour (EDT)222300010203040506070809101112131415161718192021
Temperature (°F)747474737271717171727477808385878889898887858380
Dewpoint (°F)737272717171717171727272737373727272717171727272
Heat Index (°F)77848992949595959493918884
Surface Wind (mph)322222222222222333555333
Wind DirSWSWSWSWSWSWSWSWSWWWWWWWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)768580777374757772686357514438332828282822191818
Precipitation Potential (%)26222017151516161616171717161616161616161412107
Relative Humidity (%)979394959799100100100989386787266625957575760647076
RainChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChc--------
ThunderSChc------------------------------SChcSChcSChcSChc--------

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