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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

71°F

22°C

Humidity	71%
Wind Speed	E 8 mph
Barometer	29.98 in (1015.3 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Last update	7 Apr 7:53 pm CDT

More Information:

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

Extended Forecast for

Port Isabel TX

Tonight
Low: 70 °F
Partly Cloudy
then Slight
Chance
Showers
Wednesday
High: 78 °F
Slight Chance
T-storms then
Chance
Showers
Wednesday Night
Low: 70 °F
Slight Chance
T-storms then
Slight Chance
Showers
Thursday
High: 79 °F
Chance
Showers
Thursday Night
Low: 71 °F
Chance
Showers then
Chance
T-storms
Friday
High: 80 °F
Showers
Likely
Friday Night
Low: 71 °F
Chance
Showers
Saturday
High: 81 °F
Chance
Showers and
Breezy
Saturday Night
Low: 73 °F
Partly Cloudy

Detailed Forecast

Tonight

A 20 percent chance of showers after 4am. Partly cloudy, with a low around 70. East wind 7 to 10 mph.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 78. East wind 6 to 14 mph.

Wednesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 70. East wind 6 to 10 mph. Chance of precipitation is 20%.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. East southeast wind 6 to 15 mph. Chance of precipitation is 40%.

Thursday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southeast wind 7 to 11 mph.

Friday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 80. East southeast wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Friday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. East southeast wind 8 to 13 mph.

Saturday

A 40 percent chance of showers. Mostly sunny, with a high near 81. Breezy, with a southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon.

Saturday Night

Partly cloudy, with a low around 73. Southeast wind around 16 mph, with gusts as high as 22 mph.

Sunday

Partly sunny, with a high near 82. Breezy, with a south southeast wind 14 to 22 mph.

Sunday Night

Mostly cloudy, with a low around 73. Southeast wind around 17 mph, with gusts as high as 24 mph.

Monday

Partly sunny, with a high near 83. Breezy.

Monday Night

Mostly cloudy, with a low around 73.

Tuesday

Mostly sunny, with a high near 83. Breezy.