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
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
Fair
82°F
28°C
| Humidity | 79% |
| Wind Speed | S 7 mph |
| Barometer | 29.98 in (1015.2 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 26 Aug 11:53 pm CDT |
Extended Forecast for
4 Miles SSW Port Isabel TX
Overnight
Low: 80 °F
Mostly Clear
Thursday
High: 90 °F
Sunny
Thursday Night
Low: 80 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 80 °F
Mostly Clear
Saturday
High: 89 °F
Sunny
Saturday Night
Low: 81 °F
Mostly Clear
Sunday
High: 90 °F
Sunny then
Slight Chance
T-stormsSunday Night
Low: 81 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 80. South wind around 7 mph.
Thursday
Sunny, with a high near 90. Light south wind becoming southeast 10 to 15 mph in the morning.
Thursday Night
Mostly clear, with a low around 80. South wind 7 to 13 mph.
Friday
Sunny, with a high near 90. South wind 5 to 14 mph becoming east southeast in the afternoon.
Friday Night
Mostly clear, with a low around 80. East southeast wind 6 to 13 mph.
Saturday
Sunny, with a high near 89. Light south wind becoming east southeast 9 to 14 mph in the morning.
Saturday Night
Mostly clear, with a low around 81. South southeast wind 7 to 13 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Southeast wind 6 to 16 mph.
Sunday Night
Mostly clear, with a low around 81. Southeast wind 11 to 15 mph.
Monday
Sunny, with a high near 90. Breezy, with a southeast wind 10 to 18 mph.
Monday Night
Mostly clear, with a low around 82. Southeast wind 10 to 16 mph.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 81.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SSW Port Isabel TX
26.01°N 97.24°W
26.01°N 97.24°W
12:18 am CDT Aug 27, 2026
12am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
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Hourly Weather Forecast
