Point Forecast: Port Isabel TX
 26.08N 97.21W
Last Update: 4:45 am CDT Jun 15, 2025
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire 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)
Red Flag Threat Index

48-Hour Period Starting:       Back 2 Days  

Date06/1506/16
Hour (CDT)040506070809101112131415161718192021222300010203
Temperature (°F)828282828283848485858585868685858483838382828282
Dewpoint (°F)808079797979797878787879797979798080808080808079
Heat Index (°F)9492929193959796979797989910098989795959594949493
Surface Wind (mph)111110101111141415151515151514141311111110101010
Wind DirSSESSESSESSESSESSESSESESESESESESESESESESESESESESESSESSESSE
Gust20
Sky Cover (%)383232304552322120161517171110122119413029312729
Precipitation Potential (%)171212791412139131412131110644121015141012
Relative Humidity (%)949390929088848280798082808083828891929091929291
RainSChc--------------------------------------SChc------
ThunderSChc--------------------------------------SChc------

Date06/17
Hour (CDT)040506070809101112131415161718192021222300010203
Temperature (°F)828282828283848585858585858585848483828282828281
Dewpoint (°F)797978787878787878787878777777777878797978787878
Heat Index (°F)929291919293959697979797969695949493939291919190
Surface Wind (mph)109991011111314151515151414131111101010101010
Wind DirSSESSESSESSESSESSESSESSESESESESESESESESESESESESESSESSESSESSE
Gust
Sky Cover (%)363118292633393634312825221814101825333026232323
Precipitation Potential (%)121314272727272727101010101010666666141414
Relative Humidity (%)909190908986838179797878787878798285888989899091
Rain------ChcChcChcChcChcChc------------------------------
Thunder------------ChcChcChc------------------------------

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