News Headlines
- 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
- Rapid-Onset (Flash) Drought Continues to Worsen Across the RGV/Deep S. Texas Ranchlands. Click Here for Details.
- RGV Summer (June-August) Weather and Climate Summary - Early Rain Gives Way to Brutal El Nino-Driven Heat, Drought
- The 2026 Atlantic Hurricane Season is Fading...but is not Over Yet. Are You Ready? Know Your Risk, Check Your Plans, Restock Your Kits, and More
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
A Few Clouds
90°F
32°C
| Humidity | 63% |
| Wind Speed | E 15 G 22 mph |
| Barometer | 29.87 in (1011.4 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 101°F (38°C) |
| Last update | 28 Sep 11:53 am CDT |
Extended Forecast for
Port Isabel TX
This Afternoon

High: 86 °F
Mostly Sunny
Tonight

Low: 82 °F
Partly Cloudy
Tuesday

High: 86 °F
Chance
Showers and
BreezyTuesday Night

Low: 83 °F
Partly Cloudy
Wednesday

High: 88 °F
Mostly Sunny
and BreezyWednesday Night
Low: 83 °F
Breezy.
Partly Cloudy
then Slight
Chance
T-stormsThursday

High: 87 °F
Showers
Likely and
BreezyThursday Night

Low: 80 °F
Showers
LikelyFriday

High: 84 °F
Showers
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 86. East wind 9 to 14 mph.
Tonight
Partly cloudy, with a low around 82. East southeast wind 9 to 13 mph.
Tuesday
A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm. Mostly sunny, with a high near 86. Breezy, with a southeast wind 9 to 18 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 83. South southeast wind 15 to 17 mph.
Wednesday
Mostly sunny, with a high near 88. Breezy, with a south southeast wind 16 to 21 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 83. Breezy, with a southeast wind 16 to 18 mph, with gusts as high as 24 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. Breezy, with a south southeast wind 15 to 18 mph. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 80. Southeast wind 7 to 14 mph. Chance of precipitation is 70%.
Friday
Showers and possibly a thunderstorm. High near 84. Southwest wind 6 to 14 mph becoming north northeast in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 79. Northeast wind 6 to 10 mph. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. North northeast wind 8 to 14 mph. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Port Isabel TX
26.08°N 97.24°W
26.08°N 97.24°W
11:45 am CDT Sep 28, 2026
12pm CDT Sep 28, 2026-6pm CDT Oct 4, 2026


