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New: October-December2026 Outlook - After a brutally hot and dry September, October brings the pattern change to wetter and less hot, with above average rainfall to close out 2026; flash flooding, water supply, & hazardous marine conditions in focus

Current conditions at

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

Lat: 26.16°NLon: 97.34°WElev: 16ft.

Rain Fog/Mist

77°F

25°C

Humidity	96%
Wind Speed	NW 6 mph
Barometer	29.93 in (1013.3 mb)
Dewpoint	76°F (24°C)
Visibility	6.00 mi
Heat Index	78°F (26°C)
Last update	6 Oct 12:53 am CDT

More Information:

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

Extended Forecast for

7 Miles SE Port Isabel TX

Overnight
Low: 77 °F
Showers
Tuesday
High: 86 °F
Showers and
Breezy
Tuesday Night
Low: 78 °F
Showers
Likely
Wednesday
High: 88 °F
Showers and
Breezy
Wednesday Night
Low: 78 °F
Showers
Likely
Thursday
High: 88 °F
Showers
Likely and
Breezy
Thursday Night
Low: 79 °F
Showers
Likely
Friday
High: 85 °F
Chance
T-storms and
Breezy
Friday Night
Low: 78 °F
Chance
Showers

Detailed Forecast

Overnight

Showers and possibly a thunderstorm. Low around 77. North wind 7 to 9 mph. Chance of precipitation is 90%.

Tuesday

Showers and possibly a thunderstorm. High near 86. Breezy, with a north wind 11 to 18 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Tuesday Night

Showers likely and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 78. North northeast wind 6 to 16 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday

Showers and possibly a thunderstorm. High near 88. Breezy, with a north northeast wind 10 to 18 mph. Chance of precipitation is 80%.

Wednesday Night

Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 78. Northeast wind 6 to 16 mph. Chance of precipitation is 70%.

Thursday

Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. Breezy, with a north northeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation is 70%.

Thursday Night

Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 79. North northeast wind 11 to 17 mph. Chance of precipitation is 60%.

Friday

A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Breezy, with a north wind 15 to 21 mph.

Friday Night

A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 78. North northeast wind 10 to 17 mph. Chance of precipitation is 40%.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. North wind 14 to 17 mph.

Saturday Night

A 20 percent chance of showers. Partly cloudy, with a low around 78. North northeast wind 5 to 13 mph.

Sunday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

Sunday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 80.

Columbus Day

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.