National Weather Service

News Headlines

WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
October 1-7 Rainfall Improves Long-Term Drought, but Severe to Extreme Conditions Remain for Some. Click Here for Details.
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.

Fair

81°F

27°C

Humidity	94%
Wind Speed	SE 9 mph
Barometer	29.92 in (1013.2 mb)
Dewpoint	79°F (26°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	13 Oct 6:53 am CDT

More Information:

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

Extended Forecast for

14 Miles NNW Port Isabel-Cameron County Airport TX

Today
High: 92 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Tonight
Low: 77 °F
Partly Cloudy
Wednesday
High: 89 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Wednesday Night
Low: 75 °F
Mostly Clear
and Breezy
then Mostly
Clear
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 74 °F
Mostly Clear
Friday
High: 84 °F
Showers
Likely and
Breezy
Friday Night
Low: 69 °F
Showers
Likely and
Breezy
Saturday
High: 79 °F
Showers
Likely and
Breezy

Detailed Forecast

Today

Mostly sunny, with a high near 92. Heat index values as high as 110. Breezy, with a south southeast wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 26 mph.

Tonight

Partly cloudy, with a low around 77. Southeast wind 11 to 16 mph, with gusts as high as 23 mph.

Wednesday

Mostly sunny, with a high near 89. Heat index values as high as 105. Breezy, with a southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 28 mph.

Wednesday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around 75. Breezy, with a southeast wind 10 to 18 mph, with gusts as high as 24 mph.

Thursday

Sunny, with a high near 87. Southeast wind 9 to 15 mph, with gusts as high as 20 mph.

Thursday Night

Mostly clear, with a low around 74. East wind 5 to 10 mph becoming light after midnight.

Friday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 84. Breezy, with a north northeast wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 60%.

Friday Night

A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 69. Breezy, with a north wind 22 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.

Saturday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Breezy, with a north wind 22 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.

Saturday Night

A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 67. Breezy, with a north northeast wind 11 to 18 mph, with gusts as high as 24 mph.

Sunday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. North northeast wind 13 to 16 mph, with gusts as high as 21 mph.

Sunday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 69.

Monday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.