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.

Mostly Cloudy

68°F

20°C

Humidity	73%
Wind Speed	S 5 mph
Barometer	30.20 in (1022.7 mb)
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	20 Jan 9:53 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
then Slight
Chance
Showers
Wednesday
High: 70 °F
Showers
Likely
Wednesday Night
Low: 64 °F
Chance
Showers
Thursday
High: 72 °F
Mostly Sunny
Thursday Night
Low: 66 °F
Partly Cloudy
Friday
High: 75 °F
Mostly Sunny
Friday Night
Low: 62 °F
Mostly Cloudy
then Chance
T-storms
Saturday
High: 69 °F
Chance
Showers and
Breezy
Saturday Night
Low: 41 °F
Chance
Showers and
Breezy

Detailed Forecast

Tonight

A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 65. Southeast wind 8 to 10 mph.

Wednesday

Showers likely, mainly between 8am and 9am. Mostly cloudy, with a high near 70. South wind 8 to 10 mph becoming east in the afternoon. Chance of precipitation is 60%.

Wednesday Night

A 40 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 64. East wind around 6 mph.

Thursday

Mostly sunny, with a high near 72. Northeast wind 5 to 10 mph becoming east southeast in the morning.

Thursday Night

Partly cloudy, with a low around 66. South southeast wind around 9 mph.

Friday

Mostly sunny, with a high near 75. South southeast wind 9 to 14 mph.

Friday Night

A 30 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 62. Southeast wind around 11 mph.

Saturday

A 40 percent chance of showers. Mostly cloudy, with a high near 69. Breezy, with a south southeast wind 11 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.

Saturday Night

A 50 percent chance of showers. Cloudy, with a low around 41. Breezy, with a north northwest wind 18 to 22 mph, with gusts as high as 28 mph.

Sunday

A chance of showers before noon, then a chance of drizzle after noon. Mostly cloudy, with a high near 48. Breezy, with a north northwest wind 22 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

Sunday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 38. Breezy, with a north northwest wind 18 to 21 mph, with gusts as high as 26 mph.

Monday

Partly sunny, with a high near 51. Breezy.

Monday Night

Mostly cloudy, with a low around 44.

Tuesday

Partly sunny, with a high near 60.