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.
Mostly Cloudy
76°F
24°C
| Humidity | 85% |
| Wind Speed | S 10 G 20 mph |
| Barometer | 29.87 in (1011.6 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 77°F (25°C) |
| Last update | 11 Mar 8:53 am CDT |
Extended Forecast for
Port Isabel TX
Today
High: 89 °F
Becoming
SunnyTonight
Low: 62 °F
Mostly Clear
Thursday
High: 65 °F
Mostly Sunny
and BreezyThursday Night
Low: 59 °F
Mostly Clear
Friday
High: 77 °F
Sunny
Friday Night
Low: 65 °F
Clear
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 68 °F
Mostly Clear
Sunday
High: 83 °F
Mostly Sunny
and Breezy
Detailed Forecast
Today
Partly sunny, then gradually becoming sunny, with a high near 89. South wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 62. South southeast wind 6 to 11 mph becoming north 12 to 17 mph after midnight. Winds could gust as high as 22 mph.
Thursday
Mostly sunny, with a steady temperature around 65. Breezy, with a north wind 20 to 22 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 59. North northeast wind 9 to 14 mph becoming light east after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 77. Light east wind becoming southeast 6 to 11 mph in the afternoon.
Friday Night
Clear, with a low around 65. Southeast wind around 10 mph.
Saturday
Sunny, with a high near 81. South southeast wind 9 to 17 mph.
Saturday Night
Mostly clear, with a low around 68. South southeast wind around 16 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 83. Breezy, with a south wind 15 to 21 mph.
Sunday Night
Mostly cloudy, with a low around 65. South southeast wind 10 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 75. Breezy, with a north northeast wind 14 to 23 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 62. Breezy.
Tuesday
Partly sunny, with a high near 74.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Isabel TX
26.06°N 97.21°W
26.06°N 97.21°W
9:45 am CDT Mar 11, 2026
9am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
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