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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.

Rain

74°F

23°C

Humidity	91%
Wind Speed	N 16 G 25 mph
Barometer	30.06 in (1017.7 mb)
Dewpoint	71°F (22°C)
Visibility	9.00 mi
Last update	19 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: 71 °F
Showers
Likely
Sunday
High: 74 °F
Showers and
Breezy
Sunday Night
Low: 69 °F
Showers
Likely and
Breezy
Monday
High: 75 °F
Showers
Likely
Monday Night
Low: 72 °F
Chance
Showers
Tuesday
High: 78 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 73 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 79 °F
Mostly Sunny
Wednesday Night
Low: 74 °F
Mostly Clear

Detailed Forecast

Overnight

Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. North northeast wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

Sunday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 74. Breezy, with a northeast wind 22 to 24 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

Sunday Night

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 69. Breezy, with an east northeast wind 13 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. East wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

Monday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. East wind 11 to 17 mph.

Tuesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. Southeast wind 10 to 16 mph.

Tuesday Night

A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 73. Southeast wind 10 to 14 mph. Chance of precipitation is 10%.

Wednesday

Mostly sunny, with a high near 79. South southeast wind 9 to 15 mph.

Wednesday Night

Mostly clear, with a low around 74. Southeast wind around 13 mph.

Thursday

Mostly sunny, with a high near 80. Breezy, with a southeast wind 13 to 20 mph.