National Weather Service

News Headlines

New: March-May (Spring 2026) Outlook: Warmer than normal temperatures are favored to continue; precipitation is a toss-up; drought, wildfire potential, water supply, and heat risk concerns are in focus
The Potential for Wildfire Spread Will Remain Acute through Early March. Stop Wildfires Before they Start with Smokey Bear
El riesgo de propagación de incendios forestales aumenta durante marzo. Revise estas medidas de prevención.
Drought is Worsening and Increasing in Coverage Across the Area as We Head into Spring. Track Its Coverage Here.

Current conditions at

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

Lat: 26.16°NLon: 97.34°WElev: 16ft.

Overcast

75°F

24°C

Humidity	90%
Wind Speed	SE 18 mph
Barometer	30.00 in (1015.7 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	3 Mar 11:53 pm CST

More Information:

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

Extended Forecast for

Port Isabel TX

Overnight
Low: 71 °F
Mostly Cloudy
Wednesday
High: 79 °F
Decreasing
Clouds and
Breezy
Wednesday Night
Low: 71 °F
Mostly Cloudy
Thursday
High: 78 °F
Gradual
Clearing and
Breezy
Thursday Night
Low: 72 °F
Partly Cloudy
then Mostly
Cloudy and
Breezy
Friday
High: 79 °F
Partly Sunny
and Breezy
Friday Night
Low: 72 °F
Mostly Cloudy
Saturday
High: 80 °F
Mostly Sunny
Saturday Night
Low: 71 °F
Chance
Showers

Detailed Forecast

Overnight

Mostly cloudy, with a low around 71. South southeast wind around 14 mph, with gusts as high as 20 mph.

Wednesday

Mostly cloudy, then gradually becoming sunny, with a high near 79. Breezy, with a south southeast wind 14 to 20 mph.

Wednesday Night

Mostly cloudy, with a low around 71. South southeast wind 14 to 17 mph, with gusts as high as 23 mph.

Thursday

Cloudy through mid morning, then gradual clearing, with a high near 78. Breezy, with a south southeast wind 14 to 20 mph, with gusts as high as 25 mph.

Thursday Night

Mostly cloudy, with a low around 72. Breezy, with a south southeast wind 16 to 18 mph, with gusts as high as 23 mph.

Friday

Partly sunny, with a high near 79. Breezy, with a south southeast wind 17 to 20 mph, with gusts as high as 25 mph.

Friday Night

Mostly cloudy, with a low around 72. South southeast wind 14 to 16 mph, with gusts as high as 21 mph.

Saturday

Mostly sunny, with a high near 80. Southeast wind 14 to 16 mph, with gusts as high as 21 mph.

Saturday Night

A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 71. Southeast wind 9 to 15 mph, with gusts as high as 20 mph.

Sunday

A 40 percent chance of showers. Partly sunny, with a high near 78. Southeast wind 9 to 14 mph.