Point Forecast: Central Islip NY
 40.79N 73.2W (Elev. 30 m)
Last Update: 5:47 pm EDT Jul 13, 2025
Tabular Forecast
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Weather ElementsWeather/PrecipitationAviation Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

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

48-Hour Period Starting:       Back 2 Days  

Date07/1307/14
Hour (EDT)230001020304050607080910111213141516171819202122
Temperature (°C)232223222222222222232424252627272828272726252424
Dewpoint (°C)222222222121212122232323232323232323232323232323
Heat Index (°C)2424252630303132303026252424
Surface Wind (mph)532222222235667899887666
Wind DirSESESSSSSSSSSSSSSSSSSSSSSS
Gust
Sky Cover (%)848580877485847260606871736650563333525252767679
Precipitation Potential (%)444444555555666222222303030454545
Relative Humidity (%)9397939793979397971009490878279777774777782879094
Rain------------ChcChcChc------------SChcSChcSChcChcChcChcChcChcChc
Thunder------------------------------SChcSChcSChcChcChcChcChcChcChc

Date07/15
Hour (EDT)230001020304050607080910111213141516171819202122
Temperature (°C)242424242323232323242526272728282929292827262625
Dewpoint (°C)232323232322222222242423232323232323232323232323
Heat Index (°C)24242424242526293031323233323230262625
Surface Wind (mph)553333332233556667776665
Wind DirSSSWSWSWSWSWSWSWSWSWSSSSSSSSSSSSS
Gust
Sky Cover (%)818182828383847974797978787471676257525252525047
Precipitation Potential (%)454545484848484848404040404040272727272727161616
Relative Humidity (%)9494949497979797931009788797774727067707279858890
RainChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcSChcSChcSChc
ThunderChcChcChcChcChcChcChcChcChcSChcSChcSChcSChcSChcSChc------------------

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