Point Forecast: Chatham MA
 41.68N 69.96W (Elev. 13 ft)
Last Update: 3:27 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)
Dispersion Index
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (EDT)212223000102030405060708091011121314151617181920
Temperature (°F)737272727171717171717273747677787979787877777676
Dewpoint (°F)727272717171717171717273737474747575757575747473
Heat Index (°F)7677787979787877777676
Surface Wind (mph)666666555555666789999988
Wind DirSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)747886949493939190887562655952464136394245546362
Precipitation Potential (%)000122121110000000000001
Relative Humidity (%)9710010097100100100100100100100100979490888888919194909490
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/17
Hour (EDT)212223000102030405060708091011121314151617181920
Temperature (°F)767574747474747474747575767778777777777777767675
Dewpoint (°F)737373737272727272727374747575757575757575757474
Heat Index (°F)767575757677777777777777767675
Surface Wind (mph)888888899999101011131314141414141313
Wind DirSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)646769737782869094898479767471717171686562677176
Precipitation Potential (%)23457891112141618202123222119181715161718
Relative Humidity (%)9094979793939393939394100989594939394939394959697
Rain--------------------SChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChc
Thunder----------------------------SChcSChcSChc------------SChc

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