Point Forecast: Chatham MA
 41.68N 69.96W (Elev. 4 m)
Last Update: 3:59 pm EDT Jul 13, 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  

Date07/1307/14
Hour (EDT)161718192021222300010203040506070809101112131415
Temperature (°C)222221202020201919191919191919202121222223232323
Dewpoint (°C)202020191919191919191919191919192021212121212121
Heat Index (°C)
Surface Wind (mph)987666665533333355666788
Wind DirSESESESESESESESESESESESESESESESESESESESESESESS
Gust
Sky Cover (%)665055708583848374728686878686908967666254434035
Precipitation Potential (%)000000001112222222222222
Relative Humidity (%)90909397979793100979710010010010097939797939390909087
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/15
Hour (EDT)161718192021222300010203040506070809101112131415
Temperature (°C)232322222222222121212222222222232324242425262626
Dewpoint (°C)222121212121212121212121212122222223232424232323
Heat Index (°C)24242425262626
Surface Wind (mph)87766666677777777788991010
Wind DirSSSSSSSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)464056504946566567707275798280787673716867666563
Precipitation Potential (%)22331511846810121315151414141313121198
Relative Humidity (%)90909397939397100100999797979796959394959793908888
Rain--------SChc----------------SChcSChc------------------
Thunder--------------------------SChcSChc------------------

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