Point Forecast: Port Jefferson NY
 40.93N 73.06W (Elev. 161 ft)
Last Update: 2:29 pm EDT Jul 14, 2025
Tabular Forecast
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Weather ElementsWeather/PrecipitationAviation Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date07/1407/15
Hour (EDT)222300010203040506070809101112131415161718192021
Temperature (°F)757575747474737373747477788081828384848483817877
Dewpoint (°F)737373737273737272737473737272737373727273737373
Heat Index (°F)75757577788386888990909089867877
Surface Wind (mph)655553332223355566666666
Wind DirSSSSWSSSWSWSWSWSWSSSSSSSSSSSSS
Gust
Sky Cover (%)858686869279808780737064645137413827251515213124
Precipitation Potential (%)595454546161616060604646461717171515158881010
Relative Humidity (%)94949497939710097979710088867873747270676772768487
RainLklyChcChcChcLklyLklyLklyLklyLklyLklyChcChcChcSChcSChcSChcSChcSChcSChc----------
ThunderChcChcChcChcChcChcChcChcChcChcChcChcChcSChcSChcSChcSChcSChcSChc----------

Date07/16
Hour (EDT)222300010203040506070809101112131415161718192021
Temperature (°F)757575747473737373747678808385868788888785828079
Dewpoint (°F)737272727373737373747475747574747474737373737373
Heat Index (°F)7575757678859093949597969492878479
Surface Wind (mph)655333222335566777888888
Wind DirSSSSWSWSWSWSWSWSWSWSWSWSWSWSSSSSSSSS
Gust
Sky Cover (%)293133343642475354555856545251504949505059677578
Precipitation Potential (%)101010101111111111111414141414142323232323233535
Relative Humidity (%)9390919297100100100100999491827770686563616367747982
Rain--------------------------------SChcSChcSChcSChcSChcSChcChcChc
Thunder--------------------------------SChcSChcSChcSChcSChcSChcChcChc

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