News Headlines
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- New: Hot, Windy, and Rain-Free Weather Since Late June Brought on a Rapid-Onset Drought to Portions of the RGV in Early August
- New: August-October 2026 Outlook - Hotter Than Normal And Mainly Dry Conditions Are Expected To Continue; Could Turn Wetter Towards The Fall; Heat Risk, Drought, Fire Weather, And Water Supply Issues Remain In Focus
- Check Out the 2026 Rio Grande Valley/Deep South Texas Hurricane Guide
- Guia de Huracanes 2026 del Valle del Rio Grande/Extremo Sur de Texas
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
Fair
86°F
30°C
| Humidity | 75% |
| Wind Speed | SE 9 mph |
| Barometer | 30.05 in (1017.4 mb) |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 97°F (36°C) |
| Last update | 16 Aug 8:53 pm CDT |
Extended Forecast for
Port Isabel TX
Tonight
Low: 80 °F
Mostly Clear
Monday
High: 86 °F
Sunny
Monday Night
Low: 80 °F
Mostly Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 80 °F
Mostly Clear
Wednesday
High: 87 °F
Mostly Sunny
Wednesday Night
Low: 81 °F
Mostly Clear
Thursday
High: 88 °F
Sunny
Thursday Night
Low: 81 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 80. East southeast wind 5 to 9 mph becoming light south southeast after midnight.
Monday
Sunny, with a high near 86. Light east southeast wind increasing to 9 to 14 mph in the morning.
Monday Night
Mostly clear, with a low around 80. Southeast wind 7 to 11 mph.
Tuesday
Sunny, with a high near 87. Southeast wind 5 to 15 mph.
Tuesday Night
Mostly clear, with a low around 80. South southeast wind 8 to 13 mph.
Wednesday
Mostly sunny, with a high near 87. Southeast wind 6 to 15 mph.
Wednesday Night
Mostly clear, with a low around 81. South southeast wind 9 to 14 mph.
Thursday
Sunny, with a high near 88. South southeast wind 8 to 17 mph.
Thursday Night
Mostly clear, with a low around 81. South southeast wind 9 to 15 mph.
Friday
Sunny, with a high near 88. South southeast wind 9 to 16 mph.
Friday Night
Mostly clear, with a low around 80. Southeast wind 9 to 14 mph.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 80.
Sunday
Sunny, with a high near 87.
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 97.24°W
26.08°N 97.24°W
9:00 pm CDT Aug 16, 2026
9pm CDT Aug 16, 2026-6pm CDT Aug 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
