Port Lavaca, TX Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Port Lavaca, TX in one place.
Sunny, with a high near 91. Heat index values as high as 105. East northeast wind 2 to 12 mph.
Local Weather Overview
This forecast page for Port Lavaca, 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 28, 2026 12:10 AM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Port Lavaca, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 12:10 AM CDT
- Forecast office
- CRP
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Lavaca
Saturday looks like the warmest upcoming period in Port Lavaca at 91 degrees F.
Saturday Night is the coolest period ahead with temperatures near 80 degrees F.
The strongest winds are forecast for Monday at about 5 to 14 mph SSE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 12:10 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- CRP
- Radar station
- KCRP
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 80. South southeast wind 5 to 12 mph.
Sunny, with a high near 91. South wind 3 to 13 mph.
Clear, with a low around 80. South southeast wind 6 to 13 mph.
Sunny, with a high near 90. South southeast wind 5 to 14 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 81. South southeast wind 6 to 14 mph, with gusts as high as 18 mph.
A slight chance of showers and thunderstorms after 7am. Sunny, with a high near 91. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 80. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 7am. Sunny, with a high near 90. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 80. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms between 7am and 1pm. Sunny, with a high near 90.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Sunny
|
91°F |
2 to 12 mph
ENE
|
|
Saturday Night
Aug 29
|
Clear
|
80°F |
5 to 12 mph
SSE
|
|
Sunday
Aug 30
|
Sunny
|
91°F |
3 to 13 mph
S
|
|
Sunday Night
Aug 30
|
Clear
|
80°F |
6 to 13 mph
SSE
|
|
Monday
Aug 31
|
Sunny
|
90°F |
5 to 14 mph
SSE
|
|
Monday Night
Aug 31
|
Mostly Clear
|
81°F |
6 to 14 mph
SSE
|
|
Tuesday
Sep 1
|
Slight Chance Showers And Thunderstorms
|
91°F |
5 to 13 mph
SSE
|
|
Tuesday Night
Sep 1
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
80°F |
6 to 13 mph
SSE
|
|
Wednesday
Sep 2
|
Slight Chance Showers And Thunderstorms
|
90°F |
5 to 12 mph
SE
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
80°F |
5 to 12 mph
SSE
|
|
Thursday
Sep 3
|
Slight Chance Showers And Thunderstorms
|
90°F |
3 to 12 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Lavaca.
