News Headlines
- Rapid-Onset (Flash) Drought Continues to Worsen Across the RGV/Deep S. Texas Ranchlands. Click Here for Details.
- RGV Summer (June-August) Weather and Climate Summary - Early Rain Gives Way to Brutal El Nino-Driven Heat, Drought
- New: September-November 2026 Outlook - Warmer Than Normal Conditions Favored; Precipitation A Toss-Up, But Could Trend Wetter Later This Fall; Heat Risk, Drought, Fire Weather, And Water Supply Issues Remain In Focus
- The 2026 Atlantic Hurricane Season is Fading...but is not Over Yet. Are You Ready? Know Your Risk, Check Your Plans, Restock Your Kits, and More
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
A Few Clouds
89°F
32°C
| Humidity | 65% |
| Wind Speed | E 7 mph |
| Barometer | 29.99 in (1015.6 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 100°F (38°C) |
| Last update | 23 Sep 9:53 am CDT |
Extended Forecast for
4 Miles SSW Port Isabel TX
Today
High: 89 °F
Chance
Showers then
Chance
T-stormsTonight
Low: 82 °F
Slight Chance
T-storms then
Chance
ShowersThursday
High: 89 °F
Chance
Showers then
Chance
T-stormsThursday Night
Low: 82 °F
Chance
ShowersFriday
High: 89 °F
Chance
ShowersFriday Night
Low: 82 °F
Mostly Clear
then Slight
Chance
T-stormsSaturday
High: 89 °F
Chance
T-stormsSaturday Night
Low: 80 °F
Partly Cloudy
Sunday
High: 93 °F
Chance
Showers
Detailed Forecast
Today
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 89. East northeast wind 10 to 16 mph. Chance of precipitation is 40%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 82. East wind 7 to 14 mph.
Thursday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 89. East northeast wind 6 to 16 mph. Chance of precipitation is 40%.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 7pm. Mostly clear, with a low around 82. East wind 7 to 14 mph.
Friday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 89. East wind 7 to 15 mph. Chance of precipitation is 50%.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 82. East southeast wind 6 to 14 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. East wind 6 to 14 mph.
Saturday Night
Partly cloudy, with a low around 80. East wind 5 to 10 mph becoming light southeast after midnight.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Light east southeast wind becoming east 8 to 13 mph in the morning. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 80. East southeast wind 6 to 11 mph.
Monday
Mostly sunny, with a high near 94. East southeast wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 81.
Tuesday
Mostly sunny, with a high near 95. Breezy.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SSW Port Isabel TX
26.01°N 97.24°W
26.01°N 97.24°W
10:30 am CDT Sep 23, 2026
10am CDT Sep 23, 2026-6pm CDT Sep 29, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
