News Headlines
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- October 1-7 Rainfall Improves Long-Term Drought, but Severe to Extreme Conditions Remain for Some. Click Here for Details.
- 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
79°F
26°C
| Humidity | 79% |
| Wind Speed | SE 8 mph |
| Barometer | 29.94 in (1013.8 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 15 Oct 1:53 am CDT |
Extended Forecast for
Port Isabel TX
Overnight
Low: 79 °F
Mostly Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 77 °F
Mostly Clear
Friday
High: 83 °F
Slight Chance
Showers then
Chance
Showers and
WindyFriday Night
Low: 66 °F
Mostly Cloudy
and WindySaturday
High: 70 °F
Partly Sunny
and WindySaturday Night
Low: 66 °F
Partly Cloudy
and Breezy
then Mostly
CloudySunday
High: 74 °F
Partly Sunny
Sunday Night
Low: 70 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 79. Southeast wind 11 to 13 mph.
Thursday
Sunny, with a high near 84. Southeast wind 10 to 14 mph.
Thursday Night
Mostly clear, with a low around 77. East southeast wind 5 to 10 mph becoming light and variable after midnight.
Friday
A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Increasing clouds, with a high near 83. Windy, with a north wind 7 to 17 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 66. Windy, with a north wind 29 to 31 mph, with gusts as high as 40 mph.
Saturday
Partly sunny, with a high near 70. Windy, with a north wind 25 to 29 mph, with gusts as high as 38 mph.
Saturday Night
Mostly cloudy, with a low around 66. Breezy, with a north wind 13 to 20 mph.
Sunday
Partly sunny, with a high near 74. North northwest wind around 17 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 70. North northeast wind 6 to 13 mph.
Monday
Partly sunny, with a high near 78. North northeast wind 8 to 15 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Northeast wind 5 to 11 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Isabel TX
26.08°N 97.24°W
26.08°N 97.24°W
2:00 am CDT Oct 15, 2026
2am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
