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WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
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.

Light Rain

77°F

25°C

Humidity	96%
Wind Speed	N 8 mph
Barometer	29.87 in (1011.6 mb)
Dewpoint	76°F (24°C)
Visibility	8.00 mi
Heat Index	78°F (26°C)
Last update	4 Oct 6:53 am CDT

More Information:

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

Extended Forecast for

4 Miles ESE Los Fresnos TXSimilar City Names

Today
High: 87 °F
Showers
Tonight
Low: 75 °F
Showers
Monday
High: 86 °F
Showers
Monday Night
Low: 74 °F
Showers
Tuesday
High: 88 °F
Showers
Likely
Tuesday Night
Low: 74 °F
Slight Chance
T-storms then
Slight Chance
Showers
Wednesday
High: 90 °F
Chance
Showers
Wednesday Night
Low: 75 °F
Chance
Showers
Thursday
High: 89 °F
Showers
Likely

Detailed Forecast

Today

Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 87. North northwest wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Low around 75. North northeast wind 7 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Monday

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9am. High near 86. North wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Monday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 74. North wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

Tuesday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. North wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

Tuesday Night

A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Mostly clear, with a low around 74. North northeast wind 5 to 11 mph. Chance of precipitation is 20%.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. North northeast wind 9 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Wednesday Night

A 30 percent chance of showers, mainly after 1am. Mostly clear, with a low around 75. North northeast wind 5 to 11 mph.

Thursday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. North wind 10 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

Thursday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. North northeast wind 6 to 11 mph.

Friday

Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 89. North northwest wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Friday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.