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- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
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- New: October-December2026 Outlook - After a brutally hot and dry September, October brings the pattern change to wetter and less hot, with above average rainfall to close out 2026; flash flooding, water supply, & hazardous marine conditions in focus
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
Fair
78°F
26°C
| Humidity | 82% |
| Wind Speed | SE 8 mph |
| Barometer | 30.00 in (1015.9 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 11 Oct 6:53 am CDT |
Extended Forecast for
Port Isabel TX
Today
High: 87 °F
Mostly Sunny
Tonight
Low: 80 °F
Slight Chance
T-storms then
Slight Chance
ShowersColumbus Day
High: 90 °F
Mostly Sunny
Monday Night
Low: 81 °F
Partly Cloudy
Tuesday
High: 90 °F
Mostly Sunny
then Sunny
and BreezyTuesday Night
Low: 81 °F
Mostly Clear
Wednesday
High: 89 °F
Mostly Sunny
and BreezyWednesday Night
Low: 80 °F
Mostly Clear
Thursday
High: 86 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 87. East southeast wind 11 to 15 mph.
Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 80. East southeast wind 9 to 13 mph. Chance of precipitation is 20%.
Columbus Day
Mostly sunny, with a high near 90. Southeast wind 9 to 16 mph.
Monday Night
Partly cloudy, with a low around 81. Southeast wind 11 to 13 mph.
Tuesday
Sunny, with a high near 90. Breezy, with a south southeast wind 11 to 18 mph.
Tuesday Night
Mostly clear, with a low around 81. South southeast wind around 15 mph.
Wednesday
Mostly sunny, with a high near 89. Breezy, with a southeast wind 14 to 20 mph.
Wednesday Night
Mostly clear, with a low around 80. Southeast wind 14 to 17 mph.
Thursday
Sunny, with a high near 86. Southeast wind 14 to 17 mph.
Thursday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 78. East southeast wind 7 to 15 mph.
Friday
A 40 percent chance of showers. Sunny, with a high near 84. Northeast wind 7 to 17 mph.
Friday Night
A 50 percent chance of showers. Partly cloudy, with a low around 74. Breezy.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Windy.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Isabel TX
26.06°N 97.21°W
26.06°N 97.21°W
7:00 am CDT Oct 11, 2026
7am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
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