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
- Notice: Rio Grande City NOAA Weather Radio Remains Out of Service Until Further Notice
- Check Out the 2026 Rio Grande Valley/Deep South Texas Hurricane Guide
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
Fair
91°F
33°C
| Humidity | 64% |
| Wind Speed | E 16 mph |
| Barometer | 29.98 in (1015.0 mb) |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 105°F (41°C) |
| Last update | 8 Aug 3:53 pm CDT |
Extended Forecast for
4 Miles SSW Port Isabel TX
This Afternoon
High: 88 °F
Sunny
Tonight
Low: 79 °F
Mostly Clear
Sunday
High: 87 °F
Slight Chance
T-stormsSunday Night
Low: 80 °F
Mostly Clear
Monday
High: 89 °F
Sunny
Monday Night
Low: 81 °F
Mostly Clear
Tuesday
High: 89 °F
Sunny then
Sunny and
BreezyTuesday Night
Low: 80 °F
Clear
Wednesday
High: 94 °F
Sunny then
Sunny and
Breezy
Detailed Forecast
This Afternoon
Sunny, with a high near 88. East wind around 14 mph.
Tonight
Mostly clear, with a low around 79. East wind 6 to 11 mph becoming light south southeast after midnight.
Sunday
A 20 percent chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 87. Light southeast wind becoming east 8 to 13 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 80. East southeast wind 7 to 11 mph.
Monday
Sunny, with a high near 89. South southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon.
Monday Night
Mostly clear, with a low around 81. Southeast wind 10 to 15 mph.
Tuesday
Sunny, with a high near 89. Breezy, with a south southeast wind 9 to 18 mph.
Tuesday Night
Clear, with a low around 80. South southeast wind 10 to 15 mph.
Wednesday
Sunny, with a high near 94. Breezy, with a south southeast wind 10 to 20 mph.
Wednesday Night
Clear, with a low around 81. South southeast wind 13 to 17 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 94. Breezy, with a south southeast wind 13 to 20 mph.
Thursday Night
Mostly clear, with a low around 81.
Friday
Sunny, with a high near 94. Breezy.
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
4:18 pm CDT Aug 8, 2026
4pm CDT Aug 8, 2026-6pm CDT Aug 14, 2026
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