Port Isabel, TX Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Port Isabel, TX in one place.
Mostly sunny, with a high near 88. East southeast wind 2 to 13 mph.
Local Weather Overview
This forecast page for Port Isabel, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 28, 2026 1:16 AM CDT.
The active forecast window currently covers May 29 to Jun 3, 2026 for Port Isabel, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 29 to Jun 3, 2026
- Latest sync
- May 28, 2026 1:16 AM CDT
- Forecast office
- BRO
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Isabel
Sunday looks like the warmest upcoming period in Port Isabel at 90 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 78 degrees F.
The strongest winds are forecast for Sunday at about 8 to 14 mph SE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- May 28, 2026 1:16 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- BRO
- Radar station
- KBRO
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 79. Southeast wind 6 to 12 mph.
Mostly sunny, with a high near 89. Southeast wind 5 to 13 mph.
Partly cloudy, with a low around 81. Southeast wind 9 to 13 mph.
Partly sunny, with a high near 90. Southeast wind 8 to 14 mph.
Partly cloudy, with a low around 80. Southeast wind 5 to 14 mph.
Mostly sunny, with a high near 89. East southeast wind 3 to 14 mph.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 79. East southeast wind 3 to 13 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
May 29
|
Mostly Sunny
|
88°F |
2 to 13 mph
ESE
|
|
Friday Night
May 29
|
Partly Cloudy
|
79°F |
6 to 12 mph
SE
|
|
Saturday
May 30
|
Mostly Sunny
|
89°F |
5 to 13 mph
SE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
81°F |
9 to 13 mph
SE
|
|
Sunday
May 31
|
Partly Sunny
|
90°F |
8 to 14 mph
SE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
80°F |
5 to 14 mph
SE
|
|
Monday
Jun 1
|
Mostly Sunny
|
89°F |
3 to 14 mph
ESE
|
|
Monday Night
Jun 1
|
Slight Chance Rain Showers
|
79°F |
3 to 13 mph
ESE
|
|
Tuesday
Jun 2
|
Slight Chance Showers And Thunderstorms
|
88°F |
3 to 14 mph
E
|
|
Tuesday Night
Jun 2
|
Slight Chance Showers And Thunderstorms
|
78°F |
3 to 13 mph
ENE
|
|
Wednesday
Jun 3
|
Slight Chance Showers And Thunderstorms
|
88°F |
5 to 14 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Isabel.
