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.

Fog/Mist

64°F

18°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 64°F (18°C)
Visibility 5.00 mi
Last update 23 Jan 2:53 am CST
Extended Forecast for

Port Isabel TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 64. South southeast wind around 7 mph.

    Low: 64 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 76. Southeast wind 7 to 14 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A slight chance of showers before midnight, then a slight chance of showers and thunderstorms between midnight and 3am. Mostly cloudy, with a low around 68. Southeast wind around 10 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon, then a slight chance of showers and thunderstorms after noon. Patchy fog before 7am. Otherwise, partly sunny, with a high near 78. Breezy, with a south wind 11 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Cloudy, with a low around 46. South southeast wind 13 to 16 mph becoming north northwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    Low: 46 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 52. Breezy, with a north northwest wind 17 to 24 mph, with gusts as high as 29 mph.

    High: 52 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Breezy, with a north wind around 22 mph, with gusts as high as 28 mph.

    Low: 35 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Mostly cloudy, with a high near 50. Breezy, with a north northwest wind 14 to 23 mph.

    High: 50 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. North wind 6 to 11 mph.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 64. South southeast wind around 7 mph.
Friday
Mostly cloudy, with a high near 76. Southeast wind 7 to 14 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers before midnight, then a slight chance of showers and thunderstorms between midnight and 3am. Mostly cloudy, with a low around 68. Southeast wind around 10 mph. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon, then a slight chance of showers and thunderstorms after noon. Patchy fog before 7am. Otherwise, partly sunny, with a high near 78. Breezy, with a south wind 11 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Cloudy, with a low around 46. South southeast wind 13 to 16 mph becoming north northwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Sunday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 52. Breezy, with a north northwest wind 17 to 24 mph, with gusts as high as 29 mph.
Sunday Night
Mostly cloudy, with a low around 35. Breezy, with a north wind around 22 mph, with gusts as high as 28 mph.
Monday
Mostly cloudy, with a high near 50. Breezy, with a north northwest wind 14 to 23 mph.
Monday Night
Mostly cloudy, with a low around 43. North wind 6 to 11 mph.
Tuesday
Partly sunny, with a high near 66. North wind 6 to 10 mph becoming southeast in the afternoon.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 55. Southeast wind 6 to 9 mph becoming west after midnight.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 68.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 65.
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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:
3:30 am CST Jan 23, 2026
Forecast Valid:
3am CST Jan 23, 2026-6pm CST Jan 29, 2026
 
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Additional Resources

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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