National Weather Service

News Headlines

New: Spring (March to May) 2025 RGV Weather Summary: A State of Heat and Drought, Broken by a Devastating Flood
New: Summer 2025 Outlook - The Heat Is On, Water Resource Issues May Worsen, and Limited Opportunities for Tropical Rains
New! The 2025 Rio Grande Valley/Deep South Texas Hurricane Guide is Here
Nuevo! Guia de Huracanes 2025 del Valle del Rio Grande/Extremo Sur de Texas es Aqui
Take Advantage of May (and June) to Be Ready for the 2025 Atlantic Hurricane Season!

Current conditions at

Port Isabel, Port Isabel-Cameron County Airport (KPIL)

Lat: 26.16°NLon: 97.34°WElev: 16ft.

A Few Clouds

91°F

33°C

Humidity	61%
Wind Speed	S 20 G 28 mph
Barometer	29.90 in (1012.5 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	13 Jun 10:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Port Isabel TX

Today
High: 88 °F
Sunny
Tonight
Low: 82 °F
Mostly Clear
then Slight
Chance
Showers
Saturday
High: 88 °F
Slight Chance
Showers then
Sunny
Saturday Night
Low: 81 °F
Partly Cloudy
then Slight
Chance
T-storms
Sunday
High: 88 °F
Chance
T-storms
Sunday Night
Low: 81 °F
Mostly Clear
then Chance
Showers
Monday
High: 88 °F
Chance
T-storms
Monday Night
Low: 80 °F
Mostly Clear
then Slight
Chance
T-storms
Tuesday
High: 88 °F
Slight Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 88. South southeast wind around 17 mph.

Tonight

A 10 percent chance of showers after 5am. Mostly clear, with a low around 82. Southeast wind 11 to 14 mph.

Saturday

A 20 percent chance of showers before 9am. Sunny, with a high near 88. Southeast wind 11 to 16 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 81. Southeast wind 10 to 14 mph.

Sunday

A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 88. Southeast wind 10 to 15 mph.

Sunday Night

A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 81. East southeast wind 9 to 13 mph. Chance of precipitation is 30%.

Monday

A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South southeast wind 8 to 14 mph.

Monday Night

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 80. Southeast wind 10 to 13 mph.

Tuesday

A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88. South southeast wind 10 to 16 mph.

Tuesday Night

Mostly clear, with a low around 81. Southeast wind around 14 mph.

Wednesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southeast wind 13 to 17 mph, with gusts as high as 22 mph.

Wednesday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.

Juneteenth

Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 85. Chance of precipitation is 70%.