National Weather Service

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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

74°F

23°C

Humidity	56%
Wind Speed	S 15 G 22 mph
Barometer	29.87 in (1011.5 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	16 Jan 4:53 pm CST

More Information:

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

Extended Forecast for

Port Isabel TX

Tonight
Low: 65 °F
Mostly Cloudy
Saturday
High: 65 °F
Breezy.
Slight Chance
Showers then
Showers
Likely
Saturday Night
Low: 54 °F
Breezy.
Chance
Showers then
Partly Cloudy
Sunday
High: 61 °F
Sunny and
Breezy then
Sunny
Sunday Night
Low: 54 °F
Mostly Clear
M.L.King Day
High: 69 °F
Increasing
Clouds
Monday Night
Low: 63 °F
Mostly Cloudy
then Slight
Chance
Showers
Tuesday
High: 70 °F
Chance
Showers
Tuesday Night
Low: 64 °F
Chance
Showers

Detailed Forecast

Tonight

Mostly cloudy, with a low around 65. South wind 8 to 14 mph becoming north after midnight.

Saturday

Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Breezy, with a north northeast wind 15 to 23 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 54. Breezy, with a north wind 20 to 24 mph, with gusts as high as 30 mph.

Sunday

Sunny, with a high near 61. Breezy, with a north wind 9 to 18 mph, with gusts as high as 23 mph.

Sunday Night

Mostly clear, with a low around 54. East northeast wind 6 to 8 mph becoming south southeast after midnight.

M.L.King Day

Increasing clouds, with a high near 69. Southeast wind 7 to 14 mph.

Monday Night

A 20 percent chance of showers after midnight. Cloudy, with a low around 63. East southeast wind 10 to 13 mph.

Tuesday

A 30 percent chance of showers. Mostly cloudy, with a high near 70. East wind 11 to 17 mph, with gusts as high as 22 mph.

Tuesday Night

A 40 percent chance of showers. Cloudy, with a low around 64. East southeast wind 11 to 14 mph.

Wednesday

A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 72. South southeast wind 11 to 15 mph. Chance of precipitation is 40%.

Wednesday Night

A 20 percent chance of showers. Partly cloudy, with a low around 64. South wind 9 to 13 mph.

Thursday

Mostly sunny, with a high near 73.

Thursday Night

Mostly cloudy, with a low around 65.

Friday

Partly sunny, with a high near 74.