National Weather Service

News Headlines

New: 2025 In Review - Heat Dominates for a 3rd Year in Row; A March Historic Flood and Continued Water Issues Made Headlines
January-March 2026 Outlook - Drier and Warmer than Normal Conditions Expected To Continue; Drought, Wildfire Potential, Water Supply Issues and Cold Fronts Remain In Focus

Current conditions at

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

Lat: 26.16°NLon: 97.34°WElev: 16ft.

Fair

69°F

21°C

Humidity	68%
Wind Speed	S 8 mph
Barometer	29.91 in (1012.8 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Last update	16 Jan 6:53 pm CST

More Information:

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

Extended Forecast for

Port Isabel TX

Tonight
Low: 64 °F
Mostly Cloudy
Saturday
High: 65 °F
Breezy.
Chance
Showers then
Showers
Likely
Saturday Night
Low: 53 °F
Breezy.
Chance
Showers then
Partly Cloudy
Sunday
High: 62 °F
Sunny
Sunday Night
Low: 52 °F
Mostly Clear
M.L.King Day
High: 70 °F
Increasing
Clouds
Monday Night
Low: 62 °F
Mostly Cloudy
then Slight
Chance
Showers
Tuesday
High: 71 °F
Chance
Showers
Tuesday Night
Low: 63 °F
Chance
Showers

Detailed Forecast

Tonight

Mostly cloudy, with a low around 64. South wind 6 to 11 mph becoming north after midnight.

Saturday

Showers likely, mainly between 11am and 3pm. Mostly cloudy, with a high near 65. Breezy, with a north northeast wind 14 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

Saturday Night

A 40 percent chance of showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. Breezy, with a north wind 17 to 21 mph, with gusts as high as 30 mph.

Sunday

Sunny, with a high near 62. North wind 9 to 16 mph, with gusts as high as 23 mph.

Sunday Night

Mostly clear, with a low around 52. East northeast wind around 7 mph becoming south southeast after midnight.

M.L.King Day

Increasing clouds, with a high near 70. Southeast wind 6 to 14 mph.

Monday Night

A 20 percent chance of showers after midnight. Cloudy, with a low around 62. East southeast wind around 10 mph.

Tuesday

A 30 percent chance of showers. Mostly cloudy, with a high near 71. East wind 10 to 16 mph, with gusts as high as 21 mph.

Tuesday Night

A 40 percent chance of showers. Cloudy, with a low around 63. East southeast wind 10 to 13 mph.

Wednesday

A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 73. South southeast wind 10 to 14 mph. Chance of precipitation is 40%.

Wednesday Night

A 20 percent chance of showers. Partly cloudy, with a low around 63. South wind 7 to 10 mph.

Thursday

Mostly sunny, with a high near 74.

Thursday Night

Mostly cloudy, with a low around 63.

Friday

Partly sunny, with a high near 76.