News Headlines
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- Hot, Windy, and Rain-Free Weather Since Late June Brought on a Rapid-Onset Drought to Portions of the RGV in Early August
- 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
Hazardous Weather Conditions
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
Fair
95°F
35°C
| Humidity | 56% |
| Wind Speed | SE 17 G 29 mph |
| Barometer | 29.96 in (1014.5 mb) |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 110°F (43°C) |
| Last update | 22 Aug 4:53 pm CDT |
Extended Forecast for
Port Isabel TX
Tonight
Low: 80 °F
Partly Cloudy
Sunday
High: 89 °F
Sunny
Sunday Night
Low: 80 °F
Mostly Clear
Monday
High: 89 °F
Becoming
SunnyMonday Night
Low: 80 °F
Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 81 °F
Clear
Wednesday
High: 87 °F
Sunny
Wednesday Night
Low: 80 °F
Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 80. Southeast wind 8 to 15 mph.
Sunday
Sunny, with a high near 89. East southeast wind 7 to 14 mph.
Sunday Night
Mostly clear, with a low around 80. Southeast wind 8 to 13 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 89. Southeast wind 6 to 15 mph.
Monday Night
Clear, with a low around 80. Southeast wind 10 to 14 mph.
Tuesday
Sunny, with a high near 89. Southeast wind 8 to 15 mph.
Tuesday Night
Clear, with a low around 81. Southeast wind 9 to 14 mph.
Wednesday
Sunny, with a high near 87. Southeast wind 7 to 15 mph, with gusts as high as 21 mph.
Wednesday Night
Clear, with a low around 80. Southeast wind 9 to 14 mph.
Thursday
Sunny, with a high near 87. Southeast wind 6 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 81. Southeast wind 8 to 13 mph.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 81.
Saturday
Sunny, with a high near 87.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Isabel TX
26.08°N 97.21°W
26.08°N 97.21°W
5:45 pm CDT Aug 22, 2026
5pm CDT Aug 22, 2026-6pm CDT Aug 29, 2026
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