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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!
- Severe to Extreme Conditions Remain for Parts of the RGV/Ranchlands Headed into Late October. Click Here for Details.
- 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.
Mostly Cloudy
72°F
22°C
| Humidity | 84% |
| Wind Speed | NE 5 mph |
| Barometer | 30.10 in (1019.3 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 20 Oct 1:53 am CDT |
Extended Forecast for
10 Miles E Port Mansfield TX
Overnight
Low: 72 °F
Mostly Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 72 °F
Chance
ShowersWednesday
High: 85 °F
Showers
LikelyWednesday Night
Low: 73 °F
Chance
ShowersThursday
High: 83 °F
Sunny
Thursday Night
Low: 70 °F
Mostly Clear
Friday
High: 84 °F
Sunny
Friday Night
Low: 73 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 72. East northeast wind around 10 mph.
Tuesday
Sunny, with a high near 84. North northeast wind 9 to 16 mph, with gusts as high as 21 mph.
Tuesday Night
A slight chance of showers before 4am, then a chance of showers after 5am. Mostly clear, with a low around 72. North northeast wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 85. North wind 8 to 13 mph becoming east northeast in the afternoon. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 73. East wind 7 to 13 mph.
Thursday
Sunny, with a high near 83. East northeast wind 8 to 13 mph.
Thursday Night
Mostly clear, with a low around 70. East wind 6 to 11 mph.
Friday
Sunny, with a high near 84. East wind 6 to 11 mph.
Friday Night
Mostly clear, with a low around 73. East wind around 14 mph.
Saturday
Mostly sunny, with a high near 83. East southeast wind 11 to 16 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 75. East southeast wind 14 to 17 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 74.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
10 Miles E Port Mansfield TX
26.56°N 97.27°W
26.56°N 97.27°W
2:15 am CDT Oct 20, 2026
2am CDT Oct 20, 2026-6pm CDT Oct 26, 2026
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