News Headlines
- New: Spring 2026 RGV Weather and Climate Summary - Worst Drought Since 2013 is Quenched by April and May Rains
- New: Summer (June-August) Outlook - Wet Periods into June before Heat Rebuilds and Dryness/Drought Returns
- 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
- We're Hiring! If You're a Budding Meteorologist Looking for a Fulfilling Career, Apply Today to Join Our Team
Hazardous Weather Conditions
Current conditions at
Port Isabel, Port Isabel-Cameron County Airport (KPIL)
Lat: 26.16°NLon: 97.34°WElev: 16ft.
Light Rain Fog/Mist
85°F
29°C
| Humidity | 88% |
| Wind Speed | S 10 mph |
| Barometer | 29.61 in (1002.8 mb) |
| Dewpoint | 81°F (27°C) |
| Visibility | 6.00 mi |
| Heat Index | 101°F (38°C) |
| Last update | 17 Jun 8:53 pm CDT |
Extended Forecast for
4 Miles SSW Port Isabel TX
Extreme Heat Warning June 18, 11:00am until June 18, 08:00pm
Tonight
Low: 84 °F
Mostly Clear
Thursday
High: 90 °F
Sunny and
BreezyThursday Night
Low: 85 °F
Mostly Clear
and BreezyJuneteenth
High: 89 °F
Increasing
Clouds and
BreezyFriday Night
Low: 85 °F
Mostly Cloudy
Saturday
High: 88 °F
Partly Sunny
Saturday Night
Low: 84 °F
Mostly Cloudy
Sunday
High: 88 °F
Mostly Sunny
and BreezySunday Night
Low: 84 °F
Mostly Clear
and Breezy
then Partly
Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 84. South wind 15 to 17 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 90. Heat index values as high as 110. Breezy, with a south wind 17 to 22 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 85. Breezy, with a south southeast wind 16 to 21 mph, with gusts as high as 28 mph.
Juneteenth
Increasing clouds, with a high near 89. Heat index values as high as 107. Breezy, with a south southeast wind 16 to 21 mph.
Friday Night
Mostly cloudy, with a low around 85. Southeast wind 13 to 17 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, with a high near 88. Southeast wind 14 to 17 mph.
Saturday Night
Mostly cloudy, with a low around 84. South southeast wind around 15 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 88. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 84. Breezy, with a south southeast wind around 18 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 88. Breezy, with a south southeast wind 18 to 20 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 83. Southeast wind 11 to 16 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 82.
Wednesday
Mostly sunny, with a high near 87.
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
9:45 pm CDT Jun 17, 2026
9pm CDT Jun 17, 2026-6pm CDT Jun 24, 2026
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Hourly Weather Forecast
