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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!
- Severe to Extreme Conditions Remain for Parts of the RGV/Ranchlands Headed into Late October. Click Here for Details.
- 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.
Overcast
80°F
27°C
| Humidity | 62% |
| Wind Speed | NE 15 mph |
| Barometer | 30.17 in (1021.4 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 19 Oct 11:53 am CDT |
Extended Forecast for
Port Isabel TX
This Afternoon
High: 80 °F
Chance
ShowersTonight
Low: 77 °F
Slight Chance
Showers then
Mostly ClearTuesday
High: 82 °F
Sunny
Tuesday Night
Low: 76 °F
Chance
ShowersWednesday
High: 81 °F
Showers
LikelyWednesday Night
Low: 76 °F
Partly Cloudy
then Slight
Chance
ShowersThursday
High: 80 °F
Sunny
Thursday Night
Low: 76 °F
Clear
Friday
High: 81 °F
Sunny
Detailed Forecast
This Afternoon
A 50 percent chance of showers. Mostly cloudy, with a high near 80. North northeast wind around 15 mph.
Tonight
A 10 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. East northeast wind 8 to 11 mph.
Tuesday
Sunny, with a high near 82. North northeast wind 9 to 16 mph.
Tuesday Night
A slight chance of showers between 11pm and midnight, then a chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 76. Northeast wind 6 to 13 mph. Chance of precipitation is 30%.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. East northeast wind 7 to 14 mph. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 76. East northeast wind 6 to 11 mph.
Thursday
Sunny, with a high near 80. East northeast wind 7 to 14 mph.
Thursday Night
Clear, with a low around 76. East wind 5 to 11 mph.
Friday
Sunny, with a high near 81. East wind 5 to 13 mph.
Friday Night
Mostly clear, with a low around 77. Southeast wind 8 to 10 mph.
Saturday
Mostly sunny, with a high near 82. East southeast wind 8 to 16 mph.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Mostly sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Isabel TX
26.08°N 97.24°W
26.08°N 97.24°W
12:30 pm CDT Oct 19, 2026
12pm CDT Oct 19, 2026-6pm CDT Oct 25, 2026
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