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

59°F

15°C

Humidity	29%
Wind Speed	N 13 G 18 mph
Barometer	30.38 in (1028.8 mb)
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Last update	18 Jan 12:53 pm CST

More Information:

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

Extended Forecast for

Port Isabel TX

This Afternoon
High: 61 °F
Sunny
Tonight
Low: 49 °F
Clear
M.L.King Day
High: 69 °F
Sunny
Monday Night
Low: 61 °F
Increasing
Clouds
Tuesday
High: 71 °F
Slight Chance
Showers
Tuesday Night
Low: 62 °F
Chance
Showers
Wednesday
High: 73 °F
Chance
Showers
Wednesday Night
Low: 60 °F
Slight Chance
Showers
Thursday
High: 70 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 61. North wind 8 to 14 mph.

Tonight

Clear, with a low around 49. Northeast wind around 6 mph becoming light and variable in the evening.

M.L.King Day

Sunny, with a high near 69. Light south southeast wind becoming southeast 9 to 14 mph in the morning.

Monday Night

Increasing clouds, with a low around 61. East southeast wind 8 to 11 mph.

Tuesday

A 20 percent chance of showers. Mostly cloudy, with a high near 71. East southeast wind 8 to 14 mph, with gusts as high as 20 mph.

Tuesday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 62. Southeast wind 8 to 13 mph.

Wednesday

A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Mostly cloudy, with a high near 73. South southeast wind 8 to 11 mph. Chance of precipitation is 50%.

Wednesday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 60. South southeast wind 6 to 8 mph becoming north northwest after midnight.

Thursday

Mostly sunny, with a high near 70. North wind 8 to 13 mph.

Thursday Night

Partly cloudy, with a low around 60. North northeast wind 5 to 10 mph becoming east after midnight.

Friday

Partly sunny, with a high near 75. Southeast wind 5 to 13 mph.

Friday Night

Mostly cloudy, with a low around 65.

Saturday

Partly sunny, with a high near 77.