Point Forecast: Chatham MA
 41.68N 69.96W (Elev. 4 m)
Last Update: 10:05 am EDT Jul 8, 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  

Date07/0807/09
Hour (EDT)111213141516171819202122230001020304050607080910
Temperature (°C)262626262625242423222322222221212121212122222323
Dewpoint (°C)232424232424232323222222222121212121212122222323
Heat Index (°C)2626262626252424
Surface Wind (mph)91010111111101010988776666666666
Wind DirSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWWWW
Gust
Sky Cover (%)262017143351586260717381777771828183879084738473
Precipitation Potential (%)348112335485250606157525853525252526257323232
Relative Humidity (%)8891918891949494100100931001009710010010010010010010010010097
Rain--------SChcChcChcChcChcLklyLklyLklyChcLklyChcChcChcChcChcLklyLklyChcChcChc
Thunder--------SChcChcChcChcChcLklyLklyLklyChcLklyChcChcChcChcChcChcChcSChcSChcSChc

Date07/10
Hour (EDT)111213141516171819202122230001020304050607080910
Temperature (°C)242424242323222221212120202019191919202121212122
Dewpoint (°C)232322222222222121212120202019191919192020212122
Heat Index (°C)24242424
Surface Wind (mph)777776665553333335556667
Wind DirWWWWWNWNNNNENEEEEEEEEEEEEEE
Gust
Sky Cover (%)616466696968687276808181828485878787878786868584
Precipitation Potential (%)323027242219161617171717172124283135383940424344
Relative Humidity (%)9491909092949798991001001001001001001009998979696979899
RainChcChcChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcChcChcChcChcChcChcChcChcChc
Thunder------------------------SChcSChcSChcSChcSChcSChcSChcSChcSChc------

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