News Headlines
- New: Preliminary Summary of Damage from Wind-Driven Hail and Flooding Rain in Starr County, March 7-8
- 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.
A Few Clouds
75°F
24°C
| Humidity | 88% |
| Wind Speed | SE 12 mph |
| Barometer | 29.96 in (1014.3 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 10 Mar 6:53 am CDT |
Extended Forecast for
Port Isabel TX
Today
High: 80 °F
Partly Sunny
and BreezyTonight
Low: 72 °F
Mostly Cloudy
and BreezyWednesday
High: 84 °F
Decreasing
CloudsWednesday Night
Low: 66 °F
Mostly Clear
Thursday
High: 72 °F
Sunny and
BreezyThursday Night
Low: 62 °F
Mostly Clear
Friday
High: 74 °F
Sunny
Friday Night
Low: 67 °F
Mostly Clear
Saturday
High: 78 °F
Sunny
Detailed Forecast
Today
Partly sunny, with a high near 80. Breezy, with a south southeast wind 15 to 23 mph, with gusts as high as 29 mph.
Tonight
Mostly cloudy, with a low around 72. Breezy, with a south southeast wind 17 to 21 mph, with gusts as high as 26 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 84. South wind 13 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 66. East wind 5 to 14 mph becoming north after midnight.
Thursday
Sunny, with a high near 72. Breezy, with a north wind 21 to 23 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 62. North northeast wind 6 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 74. Light east wind becoming east southeast 6 to 11 mph in the afternoon.
Friday Night
Mostly clear, with a low around 67. Southeast wind around 11 mph.
Saturday
Sunny, with a high near 78. South southeast wind 9 to 16 mph.
Saturday Night
Mostly clear, with a low around 70. South southeast wind around 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 81. Breezy, with a south wind 14 to 18 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 66.
Monday
Mostly cloudy, with a high near 72. 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
7:30 am CDT Mar 10, 2026
7am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
