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.
Partly Cloudy
75°F
24°C
| Humidity | 90% |
| Wind Speed | SE 15 mph |
| Barometer | 29.96 in (1014.3 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 9 Mar 9:53 pm CDT |
Extended Forecast for
Port Isabel TX
Tonight

Low: 72 °F
Mostly Cloudy
Tuesday

High: 80 °F
Partly Sunny
and BreezyTuesday Night

Low: 72 °F
Mostly Cloudy
and BreezyWednesday

High: 84 °F
Mostly Sunny
Wednesday Night

Low: 66 °F
Mostly Clear
Thursday

High: 72 °F
Sunny and
BreezyThursday Night

Low: 62 °F
Mostly Clear
Friday

High: 75 °F
Sunny
Friday Night

Low: 67 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 72. Southeast wind around 15 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 80. Breezy, with a south southeast wind 14 to 23 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 72. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 28 mph.
Wednesday
Mostly sunny, with a high near 84. South wind 11 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 66. Southeast wind 6 to 14 mph becoming north after midnight.
Thursday
Sunny, with a high near 72. Breezy, with a north wind 20 to 22 mph.
Thursday Night
Mostly clear, with a low around 62. East northeast wind 6 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 75. Light east southeast wind becoming 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 10 to 17 mph.
Saturday Night
Mostly clear, with a low around 70. South southeast wind around 15 mph.
Sunday
Sunny, with a high near 80. Breezy.
Sunday Night
Mostly clear, with a low around 69.
Monday
Partly sunny, with a high near 77. Breezy.
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 97.21°W
26.08°N 97.21°W
10:00 pm CDT Mar 9, 2026
10pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026


