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
- 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
69°F
21°C
| Humidity | 84% |
| Wind Speed | S 12 mph |
| Barometer | 30.09 in (1018.8 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 20 Mar 11:53 pm CDT |
Extended Forecast for
Port Isabel TX
Tonight
Low: 67 °F
Mostly Clear
Saturday
High: 78 °F
Sunny
Saturday Night
Low: 68 °F
Mostly Clear
Sunday
High: 78 °F
Sunny then
Sunny and
BreezySunday Night
Low: 68 °F
Mostly Clear
Monday
High: 78 °F
Sunny
Monday Night
Low: 69 °F
Mostly Clear
Tuesday
High: 78 °F
Sunny
Tuesday Night
Low: 70 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 67. South wind around 14 mph.
Saturday
Sunny, with a high near 78. South wind 11 to 17 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 68. South southeast wind around 14 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 78. Breezy, with a south southeast wind 13 to 18 mph.
Sunday Night
Mostly clear, with a low around 68. South southeast wind 10 to 14 mph.
Monday
Sunny, with a high near 78. South southeast wind 9 to 14 mph.
Monday Night
Mostly clear, with a low around 69. East southeast wind 6 to 13 mph.
Tuesday
Sunny, with a high near 78. Southeast wind 5 to 15 mph.
Tuesday Night
Mostly clear, with a low around 70. South southeast wind 8 to 13 mph.
Wednesday
Sunny, with a high near 79. Southeast wind 6 to 16 mph.
Wednesday Night
Mostly clear, with a low around 69. Southeast wind 10 to 14 mph.
Thursday
Sunny, with a high near 79. Breezy.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 78. Breezy.
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 97.21°W
26.08°N 97.21°W
11:45 pm CDT Mar 20, 2026
11pm CDT Mar 20, 2026-6pm CDT Mar 27, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
