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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

78°F

26°C

Humidity	93%
Wind Speed	N 15 mph
Barometer	29.94 in (1013.8 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	4 Oct 1:53 pm CDT

More Information:

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

Extended Forecast for

Los Fresnos TX

This Afternoon
High: 87 °F
Heavy Rain
Tonight
Low: 76 °F
Showers
Likely
Monday
High: 86 °F
Heavy Rain
Monday Night
Low: 74 °F
Heavy Rain
Tuesday
High: 88 °F
Heavy Rain
Tuesday Night
Low: 74 °F
Chance
Showers
Wednesday
High: 91 °F
Chance
Showers
Wednesday Night
Low: 75 °F
Slight Chance
T-storms then
Chance
Showers
Thursday
High: 90 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 87. North northeast wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 76. North wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. Some of the storms could produce heavy rainfall. High near 86. North wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Monday Night

Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Some of the storms could produce heavy rainfall. Low around 74. North wind 8 to 10 mph. Chance of precipitation is 80%.

Tuesday

Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 88. North wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

Tuesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 74. North northeast wind 6 to 10 mph. Chance of precipitation is 30%.

Wednesday

A chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 91. North northeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. North northeast wind 5 to 10 mph.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. North northeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 74. North northeast wind 6 to 10 mph. Chance of precipitation is 40%.

Friday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. North wind 10 to 16 mph, with gusts as high as 25 mph.

Friday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Saturday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.