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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.

Partly Cloudy

90°F

32°C

Humidity	66%
Wind Speed	S 18 G 28 mph
Barometer	29.95 in (1014.1 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	14 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
Slight Chance
T-storms
Tonight
Low: 81 °F
Chance
T-storms
Sunday
High: 88 °F
Chance
T-storms
Sunday Night
Low: 81 °F
Slight Chance
T-storms then
Chance
Showers
Monday
High: 87 °F
Chance
T-storms
Monday Night
Low: 80 °F
Slight Chance
T-storms
Tuesday
High: 87 °F
Slight Chance
T-storms
Tuesday Night
Low: 81 °F
Partly Cloudy
Wednesday
High: 87 °F
Chance
T-storms

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 88. Southeast wind around 17 mph.

Tonight

A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 81. East southeast wind 10 to 14 mph. Chance of precipitation is 30%.

Sunday

A chance of showers, with thunderstorms also possible after 10am. Sunny, with a high near 88. Southeast wind 10 to 15 mph. Chance of precipitation is 40%.

Sunday Night

A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 81. Southeast wind 9 to 13 mph. Chance of precipitation is 30%.

Monday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southeast wind 9 to 14 mph.

Monday Night

A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 80. Southeast wind 10 to 13 mph. Chance of precipitation is 20%.

Tuesday

A 20 percent chance of showers and thunderstorms. Sunny, with a high near 87. South southeast wind 10 to 16 mph, with gusts as high as 21 mph.

Tuesday Night

Partly cloudy, with a low around 81. South southeast wind around 14 mph.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. Southeast wind 13 to 17 mph.

Wednesday Night

A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 79. Southeast wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Juneteenth

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. East southeast wind 13 to 16 mph. Chance of precipitation is 70%.

Thursday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.

Friday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.