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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

59°F

15°C

Humidity	83%
Wind Speed	NW 18 G 25 mph
Barometer	30.21 in (1022.8 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	6 Apr 1:53 am CDT

More Information:

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

Extended Forecast for

Port Isabel TX

Overnight
Low: 62 °F
Chance
Showers
Monday
High: 72 °F
Breezy.
Chance
Showers then
Mostly Cloudy
Monday Night
Low: 63 °F
Partly Cloudy
Tuesday
High: 76 °F
Mostly Sunny
then Slight
Chance
Showers
Tuesday Night
Low: 68 °F
Chance
Showers
Wednesday
High: 80 °F
Chance
Showers
Wednesday Night
Low: 70 °F
Slight Chance
Showers then
Slight Chance
T-storms
Thursday
High: 80 °F
Slight Chance
T-storms then
Chance
Showers
Thursday Night
Low: 71 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Overnight

A 50 percent chance of showers, mainly before 5am. Mostly cloudy, with a low around 62. North northwest wind around 17 mph, with gusts as high as 24 mph.

Monday

A 40 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 72. Breezy, with a north wind 17 to 20 mph.

Monday Night

Partly cloudy, with a low around 63. North northeast wind 6 to 13 mph.

Tuesday

A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 76. North northeast wind 6 to 11 mph.

Tuesday Night

A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. East wind 6 to 10 mph. Chance of precipitation is 30%.

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind 6 to 13 mph. Chance of precipitation is 30%.

Wednesday Night

A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 70. East southeast wind 6 to 10 mph. Chance of precipitation is 20%.

Thursday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 80. 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 6 to 11 mph.

Friday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81. East southeast wind 6 to 16 mph.

Friday Night

Partly cloudy, with a low around 71. East southeast wind 9 to 13 mph.

Saturday

A 20 percent chance of showers. Mostly sunny, with a high near 81. Breezy.

Saturday Night

Mostly cloudy, with a low around 72.