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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.

Light Rain

58°F

14°C

Humidity	97%
Wind Speed	NW 16 mph
Barometer	30.15 in (1020.9 mb)
Dewpoint	57°F (14°C)
Visibility	8.00 mi
Last update	19 Apr 7:53 am CDT

More Information:

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

Extended Forecast for

Port Isabel TX

Today
High: 75 °F
Showers and
Breezy
Tonight
Low: 67 °F
Showers
Likely and
Breezy
Monday
High: 77 °F
Showers
Likely
Monday Night
Low: 71 °F
Chance
Showers
Tuesday
High: 81 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 72 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 82 °F
Mostly Sunny
Wednesday Night
Low: 72 °F
Mostly Clear
Thursday
High: 83 °F
Mostly Sunny
then Mostly
Sunny and
Breezy

Detailed Forecast

Today

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9am. High near 75. Breezy, with a northeast wind around 22 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

Tonight

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 67. Breezy, with an east northeast wind 10 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. East wind 10 to 15 mph, with gusts as high as 21 mph.

Tuesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Southeast wind 8 to 15 mph, with gusts as high as 20 mph.

Tuesday Night

A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 72. Southeast wind 9 to 14 mph. Chance of precipitation is 10%.

Wednesday

Mostly sunny, with a high near 82. South southeast wind 8 to 15 mph.

Wednesday Night

Mostly clear, with a low around 72. Southeast wind 11 to 13 mph.

Thursday

Mostly sunny, with a high near 83. Breezy, with a southeast wind 11 to 20 mph.