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New: April-June 2026 Outlook: Warmer than normal temperatures are favored to continue; precipitation is a toss-up; drought, heat risk increases, occasional heavy rain/flooding, & water supply issues are in focus

Current conditions at

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

Lat: 26.16°NLon: 97.34°WElev: 16ft.

Overcast

58°F

14°C

Humidity	90%
Wind Speed	NW 15 mph
Barometer	30.22 in (1023.1 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	6 Apr 12:53 am CDT

More Information:

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

Extended Forecast for

Port Isabel TX

Overnight
Low: 64 °F
Showers
Likely and
Breezy
Monday
High: 70 °F
Breezy.
Chance
Showers then
Partly Sunny
Monday Night
Low: 64 °F
Partly Cloudy
Tuesday
High: 74 °F
Mostly Sunny
then Slight
Chance
Showers
Tuesday Night
Low: 70 °F
Chance
Showers
Wednesday
High: 77 °F
Slight Chance
Showers
Wednesday Night
Low: 71 °F
Slight Chance
Showers then
Slight Chance
T-storms
Thursday
High: 78 °F
Slight Chance
T-storms then
Chance
Showers
Thursday Night
Low: 71 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Overnight

Showers likely, mainly before 2am. Mostly cloudy, with a low around 64. Breezy, with a north northwest wind 18 to 20 mph. Chance of precipitation is 60%.

Monday

A 40 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 70. Breezy, with a north wind 18 to 21 mph.

Monday Night

Partly cloudy, with a low around 64. North northeast wind 7 to 14 mph.

Tuesday

A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 74. Northeast wind 6 to 13 mph.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East wind 8 to 11 mph. Chance of precipitation is 30%.

Wednesday

A 20 percent chance of showers. Partly sunny, with a high near 77. Southeast wind 6 to 13 mph.

Wednesday Night

A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 71. East southeast wind 7 to 11 mph. Chance of precipitation is 20%.

Thursday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 78. East southeast wind 6 to 14 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southeast wind 7 to 11 mph.

Friday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78. East southeast wind 6 to 15 mph, with gusts as high as 20 mph.

Friday Night

Partly cloudy, with a low around 73. East southeast wind 10 to 13 mph.

Saturday

A 20 percent chance of showers. Mostly sunny, with a high near 79. Breezy.

Saturday Night

Mostly cloudy, with a low around 74.