National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Port Isabel, Port Isabel-Cameron County Airport (KPIL)

Lat: 26.16°NLon: 97.34°WElev: 16ft.

Fair

42°F

6°C

Humidity 65%
Wind Speed S 5 mph
Barometer 30.31 in (1026.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 18 Jan 10:53 pm CST
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Clear, with a low around 52. South wind around 6 mph.

    Low: 52 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 68. Southeast wind 6 to 15 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 62. Southeast wind 10 to 14 mph.

    Low: 62 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 70. East southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 70 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 64. South southeast wind 10 to 14 mph.

    Low: 64 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Mostly cloudy, with a high near 72. South wind 10 to 13 mph. Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 62. South southeast wind 8 to 10 mph becoming north northwest after midnight.

    Low: 62 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 69. North northeast wind 10 to 14 mph.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. East wind 6 to 10 mph.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 52. South wind around 6 mph.
M.L.King Day
Sunny, with a high near 68. Southeast wind 6 to 15 mph.
Monday Night
Mostly cloudy, with a low around 62. Southeast wind 10 to 14 mph.
Tuesday
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 70. East southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 64. South southeast wind 10 to 14 mph.
Wednesday
A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Mostly cloudy, with a high near 72. South wind 10 to 13 mph. Chance of precipitation is 50%.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62. South southeast wind 8 to 10 mph becoming north northwest after midnight.
Thursday
Mostly sunny, with a high near 69. North northeast wind 10 to 14 mph.
Thursday Night
Partly cloudy, with a low around 62. East wind 6 to 10 mph.
Friday
Partly sunny, with a high near 74. Southeast wind 6 to 13 mph.
Friday Night
Mostly cloudy, with a low around 67. South wind around 11 mph.
Saturday
Partly sunny, with a high near 75.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.21°W
Last Update:
11:00 pm CST Jan 18, 2026
Forecast Valid:
11pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation