Port Lavaca, TX Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Port Lavaca, TX in one place.
A slight chance of showers and thunderstorms between 11am and noon, then a chance of showers and thunderstorms between 1pm and 5pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Heat index values as high as 104. South southeast wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
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: Oct 12, 2026 4:31 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Port Lavaca, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 4:31 AM CDT
- Forecast office
- CRP
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Lavaca
Tuesday looks like the warmest upcoming period in Port Lavaca at 87 degrees F.
Saturday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Friday Night at about 25 mph NNE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 4:31 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
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 81. Southeast wind 12 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Sunny, with a high near 86. Southeast wind 12 to 17 mph, with gusts as high as 23 mph.
Mostly clear, with a low around 78. Southeast wind 10 to 16 mph, with gusts as high as 22 mph.
Sunny, with a high near 86. Southeast wind around 13 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 76. East northeast wind 6 to 12 mph.
A slight chance of rain showers after 7am. Sunny, with a high near 83. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Sunny, with a high near 75.
Mostly clear, with a low around 64.
Mostly sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
87°F |
10 to 17 mph
SSE
|
|
Tuesday Night
Oct 13
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
81°F |
12 to 16 mph
SE
|
|
Wednesday
Oct 14
|
Sunny
|
86°F |
12 to 17 mph
SE
|
|
Wednesday Night
Oct 14
|
Mostly Clear
|
78°F |
10 to 16 mph
SE
|
|
Thursday
Oct 15
|
Sunny
|
86°F |
13 mph
SE
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
76°F |
6 to 12 mph
ENE
|
|
Friday
Oct 16
|
Slight Chance Rain Showers
|
83°F |
13 to 23 mph
NNE
|
|
Friday Night
Oct 16
|
Slight Chance Rain Showers then Partly Cloudy
|
68°F |
25 mph
NNE
|
|
Saturday
Oct 17
|
Sunny
|
75°F |
15 to 24 mph
NNE
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
64°F |
10 to 15 mph
NNE
|
|
Sunday
Oct 18
|
Mostly Sunny
|
77°F |
9 to 13 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Lavaca.
