News Headlines
- New: Quick Summary of Starr County Damaging Wind, Hail, and Flash Flooding March 7-8, 2026
- New! Understand Spring and Summer Hazardous Weather in the RGV with the 2026 Guide
- Winter 2025/2026 Weather and Climate Summary for the RGV - Warm and Dry - and a Hard Freeze - Worsens Drought
- March-May (Spring 2026) Outlook: Warmer than normal temperatures are favored to continue; precipitation is a toss-up; drought, wildfire potential, water supply, and heat risk concerns are in focus
- The Potential for Wildfire Spread Will Remain Acute through Early March. Stop Wildfires Before they Start with Smokey Bear
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
Fair
74°F
23°C
| Humidity | 52% |
| Wind Speed | SE 10 mph |
| Barometer | 30.22 in (1023.4 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 19 Mar 10:53 am CDT |
Extended Forecast for
Port Isabel TX
Today
High: 77 °F
Sunny
Tonight
Low: 64 °F
Mostly Clear
Friday
High: 80 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 67 °F
Mostly Clear
Sunday
High: 81 °F
Sunny
Sunday Night
Low: 68 °F
Mostly Clear
Monday
High: 82 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 77. East southeast wind 7 to 13 mph.
Tonight
Mostly clear, with a low around 64. Southeast wind 8 to 10 mph.
Friday
Sunny, with a high near 80. South wind 6 to 15 mph.
Friday Night
Mostly clear, with a low around 66. South southeast wind 10 to 13 mph.
Saturday
Sunny, with a high near 81. South southeast wind 9 to 16 mph.
Saturday Night
Mostly clear, with a low around 67. South southeast wind 11 to 14 mph.
Sunday
Sunny, with a high near 81. South southeast wind 10 to 17 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 68. South southeast wind 9 to 15 mph.
Monday
Sunny, with a high near 82. South southeast wind 8 to 14 mph.
Monday Night
Mostly clear, with a low around 67. East southeast wind 5 to 11 mph.
Tuesday
Sunny, with a high near 81. Light south southeast wind becoming east southeast 9 to 14 mph in the morning.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 81.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Isabel TX
26.06°N 97.21°W
26.06°N 97.21°W
11:30 am CDT Mar 19, 2026
11am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
