Weather forecast for tomorrowPort Lavaca, TX

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 77°F
  • 61°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphNE 40°
  • Humidity: 50%
  • UV index: 7
  • Sunrise: 7:29 am CDT
  • Sunset: 6:53 pm CDT
  • ▼
On Sunday, in Port Lavaca, sun-filled skies will remain for most of the day.
The maximum temperature will be a temperate 77°F, while the minimum temperature will be a breezy 60.8°F.
Tomorrow, expect the temperature to remain near October's average maximum of 80.6°F.
Sunrise will be at 7:29 am and sunset at 6:53 pm; tomorrow's daylight will last for 11h and 25min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 75°C.
Coldest hour: 6 am 55°C.

Chance of precipitation

Highest chance: 6 am 2%.

Hourly weather forecast

  • 12 am
  • 61°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphN 3°
  • Humidity: 57%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 57°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphN 3°
  • Humidity: 64%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 55°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphN 3°
  • Humidity: 67%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 55°F
  • Feels like:
    54°F
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphN 8°
  • Humidity: 70%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:29 am
  • 8 am
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphN 11°
  • Humidity: 73%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphNNE 30°
  • Humidity: 58%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphNE 38°
  • Humidity: 44%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 7
  • ▼
  • 2 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphNE 46°
  • Humidity: 39%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 7
  • ▼
  • 4 pm
  • 75°F
  • Feels like:
    75°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 60°
  • Humidity: 37%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 6 pm
  • 73°F
  • Feels like:
    73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 76°
  • Humidity: 40%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:53 pm
  • 8 pm
  • 68°F
  • Feels like:
    68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 78°
  • Humidity: 57%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 63°
  • Humidity: 66%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloudy and bright weather is forecasted.
The temperature will vary between the lowest temperature of 55.4°F and the highest temperature of 75.2°F. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the temperature is forecasted to be similar to the usual maximum for October. The expected low will be more consistent with what’s common in November than the current October average of 68.5°F.
Updated: Oct 17, 2026 @ 23:45:06 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunshine will lead the day, with clouds making only brief appearances.

Tomorrow, the maximum temperature will be 77°F, while the minimum temperature will be 60.8°F.
The maximum temperature will be in line with the average highest temperature of 80.6°F in October. Tomorrow, the lowest temperature will be moderately lower than the average low temperature.

On Sunday, in Port Lavaca, sunrise will be at 7:29 am and sunset at 6:53 pm (CDT).

In Port Lavaca, tomorrow, there will be 11h and 25min of daylight.