Port Isabel, TX Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Port Isabel, TX in one place.
Sunny, with a high near 94. Heat index values as high as 105. 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: Aug 27, 2026 9:47 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Port Isabel, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 9:47 PM CDT
- Forecast office
- BRO
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Isabel
Saturday looks like the warmest upcoming period in Port Isabel at 94 degrees F.
Saturday Night is the coolest period ahead with temperatures near 80 degrees F.
The strongest winds are forecast for Monday at about 8 to 16 mph SSE.
The forecast from Aug 29 through Sep 3 stays mostly dry.
Forecast Details
- Last updated
- Aug 27, 2026 9:47 PM 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
Mostly clear, with a low around 80. Southeast wind 5 to 12 mph.
Sunny. High near 94, with temperatures falling to around 90 in the afternoon. South southeast wind 3 to 14 mph.
Mostly clear, with a low around 81. South southeast wind 9 to 14 mph.
Sunny, with a high near 90. South southeast wind 8 to 16 mph.
Mostly clear, with a low around 81. Southeast wind 7 to 16 mph.
Sunny, with a high near 90. Southeast wind 7 to 16 mph.
Mostly clear, with a low around 80. Southeast wind 6 to 15 mph.
Sunny, with a high near 89.
Mostly clear, with a low around 80.
Sunny, with a high near 90.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Sunny
|
94°F |
2 to 13 mph
SE
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
80°F |
5 to 12 mph
SE
|
|
Sunday
Aug 30
|
Sunny
|
94°F |
3 to 14 mph
SSE
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
81°F |
9 to 14 mph
SSE
|
|
Monday
Aug 31
|
Sunny
|
90°F |
8 to 16 mph
SSE
|
|
Monday Night
Aug 31
|
Mostly Clear
|
81°F |
7 to 16 mph
SE
|
|
Tuesday
Sep 1
|
Sunny
|
90°F |
7 to 16 mph
SE
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
80°F |
6 to 15 mph
SE
|
|
Wednesday
Sep 2
|
Sunny
|
89°F |
5 to 14 mph
SE
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
80°F |
3 to 13 mph
SE
|
|
Thursday
Sep 3
|
Sunny
|
90°F |
2 to 13 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Isabel.
