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

48°F

9°C

Humidity 50%
Wind Speed E 6 mph
Barometer 30.31 in (1026.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 18 Jan 7:53 pm CST
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Clear, with a low around 49. East wind around 5 mph becoming light and variable in the evening.

    Low: 49 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 69. Light south southeast wind becoming southeast 9 to 14 mph in the morning.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 61. East southeast wind 8 to 11 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of showers. Mostly cloudy, with a high near 71. East southeast wind 8 to 14 mph, with gusts as high as 20 mph.

    High: 71 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 62. Southeast wind 8 to 13 mph.

    Low: 62 °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 73. South southeast wind 8 to 11 mph. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 60. South southeast wind 6 to 8 mph becoming north northwest after midnight.

    Low: 60 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 70. North wind 8 to 13 mph.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. North northeast wind 5 to 10 mph becoming east after midnight.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 49. East wind around 5 mph becoming light and variable in the evening.
M.L.King Day
Sunny, with a high near 69. Light south southeast wind becoming southeast 9 to 14 mph in the morning.
Monday Night
Increasing clouds, with a low around 61. East southeast wind 8 to 11 mph.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 71. East southeast wind 8 to 14 mph, with gusts as high as 20 mph.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62. Southeast wind 8 to 13 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 73. South southeast wind 8 to 11 mph. Chance of precipitation is 50%.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 60. South southeast wind 6 to 8 mph becoming north northwest after midnight.
Thursday
Mostly sunny, with a high near 70. North wind 8 to 13 mph.
Thursday Night
Partly cloudy, with a low around 60. North northeast wind 5 to 10 mph becoming east after midnight.
Friday
Partly sunny, with a high near 75. Southeast wind 5 to 13 mph.
Friday Night
Mostly cloudy, with a low around 65. South southeast wind around 9 mph.
Saturday
Partly sunny, with a high near 77.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.06°N 97.21°W
Last Update:
8:30 pm CST Jan 18, 2026
Forecast Valid:
8pm 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