Point Forecast: North Chelmsford MA
 42.62N 71.37W (Elev. 45 m)
Last Update: 12:11 am EDT Jul 16, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

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

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

48-Hour Period Starting:       Back 2 Days  

Date07/1607/17
Hour (EDT)010203040506070809101112131415161718192021222300
Temperature (°C)232323222222232427293132333333333332313028272626
Dewpoint (°C)222222222121222223222222222222222222232323232323
Heat Index (°C)2429323436373837373836363432302626
Surface Wind (mph)222221122223556666665555
Wind DirSWSWSWSWSWSWSWWSWSWSWSWSWSWSWSWSWSWSSSSSWSW
Gust
Sky Cover (%)314515162722181410414161012109113642304435
Precipitation Potential (%)000000000000112222233333
Relative Humidity (%)939393979793938779676157525251515256616572778285
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/18
Hour (EDT)010203040506070809101112131415161718192021222300
Temperature (°C)242424242424242526272828292930313130292828272626
Dewpoint (°C)222322222323232424242424242424242424232323232323
Heat Index (°C)242424242424242526303233343436363635333231292626
Surface Wind (mph)333335556777888887766666
Wind DirSSSSSSSSSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)484869807978848377737273737374747569635751434336
Precipitation Potential (%)233510121649494746454443414039383736271898
Relative Humidity (%)879090909494949488837977767572696869717478828586
Rain------------SChcOcnlOcnlChcChcChcChcChcChcChcChcChcChcChcChcSChc----
Thunder------------SChcChcChc--SChcSChcSChcSChcSChcSChcSChcSChc------------

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