PORT LAVACA, TX 77979 Weather Forecast & Current Conditions
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  77979 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

CALHOUN CNTY ARPT, TX
Current Weather
11:15 PM CDT JUL 4, 2026
Clear
Fog
79°F
Feels Like: 84°F
Dewpoint: 79°F
Rel. Hum.: 100%
Visibility: 1/2 miles
Wind: SSE at 6 mph
Pressure: 29.95 inches
Last 72 hours

Local Area Snow Depth

Texas Current Weather

Texas MOS Forecast Weather


Regional Weather Maps

(Automated weather data from NWS/FAA)
  77979 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

PORT LAVACA, TX 77979
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy. Lows in the lower 80s. Southeast winds 10 to 15 mph, becoming south 5 to 10 mph after midnight.
SUNDAY
Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. South winds 5 to 10 mph. Chance of rain 20 percent.
SUNDAY NIGHT
Mostly clear. Lows around 80. South winds 5 to 10 mph.
MONDAY
Sunny in the morning, then becoming partly cloudy. Highs in the lower 90s. South winds 5 to 10 mph.
MONDAY NIGHT
Mostly clear. Lows around 80. South winds 5 to 10 mph.
TUESDAY
Sunny. Highs in the lower 90s.
TUESDAY NIGHT
Mostly clear. Lows in the lower 80s.
WEDNESDAY
Sunny. Highs in the lower 90s.
WEDNESDAY NIGHT
Mostly clear. Lows in the lower 80s.
THURSDAY
Sunny. Highs in the lower 90s.
THURSDAY NIGHT
Mostly clear. Lows in the lower 80s.
FRIDAY
Partly cloudy. Highs around 90.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 80s.

  77979 WEATHER SATELLITE LOOPS
Visible Weather Satellite
PORT LAVACA, TX 77979
Infrared Weather Satellite
PORT LAVACA, TX 77979
  77979 WEATHER RADAR LOOP
NEXRAD Weather Radar
PORT LAVACA, TX 77979
 MOS COMPUTER WEATHER FORECAST

CALHOUN CNTY ARPT, TX 3 hourly weather forecast
weather forecast created  7:00 AM CDT  7/ 4/2026
Saturday
4 JUL 2026		 PORT LAVACA, TX 77979 weather forecast Day 1, 12 hours 1 PM 92° 106° Clear 1%

 0% Thunder
( 17% severe)		 S   9 62% 77°
High 94° PORT LAVACA, TX 77979 weather forecast Day 1, 15 hours 4 PM 93° 107° Partly Cloudy SSE   12 60% 77°
Partly Cloudy



 PORT LAVACA, TX 77979 weather forecast Day 1, 18 hours 7 PM 88° 101° Partly Cloudy 0%

 0% Thunder
( 3% severe)		 SSE   12 72% 78°
PORT LAVACA, TX 77979 weather forecast Day 1, 21 hours 10 PM 82° 92° Partly Cloudy S   7 91% 79°
Sunday
5 JUL 2026		 PORT LAVACA, TX 77979 weather forecast Day 2, 0 hours 1 AM 81° 89° Partly Cloudy 1%

 0% Thunder
( 4% severe)		 S   7 94% 79°
Low 78° PORT LAVACA, TX 77979 weather forecast Day 2, 3 hours 4 AM 79° 84° Partly Cloudy SSW   5 97% 78°
High 94° PORT LAVACA, TX 77979 weather forecast Day 2, 6 hours 7 AM 78° 81° Partly Cloudy 3%

 0% Thunder
( 10% severe)		 SSW   3 100% 78°

Partly Cloudy



 PORT LAVACA, TX 77979 weather forecast Day 2, 9 hours 10 AM 87° 100° Partly Cloudy S   7 75% 78°
PORT LAVACA, TX 77979 weather forecast Day 2, 12 hours 1 PM 92° 105° Partly Cloudy 2%

 0% Thunder
( 18% severe)		 SSE   9 60% 76°
PORT LAVACA, TX 77979 weather forecast Day 2, 15 hours 4 PM 92° 106° Partly Cloudy SSE   12 62% 77°
PORT LAVACA, TX 77979 weather forecast Day 2, 18 hours 7 PM 88° 100° Partly Cloudy 0%

 0% Thunder
( 3% severe)		 SSE   10 70% 77°
PORT LAVACA, TX 77979 weather forecast Day 2, 21 hours 10 PM 82° 92° Partly Cloudy SSE   7 91% 79°
Monday
6 JUL 2026		 PORT LAVACA, TX 77979 weather forecast Day 3, 0 hours 1 AM 81° 89° Partly Cloudy 0%

 0% Thunder
( 4% severe)		 S   7 94% 79°
Low 77° PORT LAVACA, TX 77979 weather forecast Day 3, 3 hours 4 AM 79° 84° Partly Cloudy S   6 97% 78°
High 94° PORT LAVACA, TX 77979 weather forecast Day 3, 6 hours 7 AM 78° 81° Partly Cloudy 2%

 0% Thunder
( 12% severe)		 SSW   2 100% 78°

Partly Cloudy



 PORT LAVACA, TX 77979 weather forecast Day 3, 9 hours 10 AM 87° 100° Partly Cloudy S   6 75% 78°
PORT LAVACA, TX 77979 weather forecast Day 3, 15 hours 1 PM 91° 103° Partly Cloudy 3%

 0% Thunder
( 17% severe)		 S   9 62% 76°
PORT LAVACA, TX 77979 weather forecast Day 3, 18 hours 4 PM 92° 105° Partly Cloudy SSE   10 60% 76°
PORT LAVACA, TX 77979 weather forecast Day 3, 21 hours 7 PM 88° 100° Partly Cloudy     SSE   10 70% 77°

CALHOUN CNTY ARPT, TX extended weather forecast
Tuesday
7 JUL 2026		 Wednesday
8 JUL 2026		 Thursday
9 JUL 2026		 Friday
10 JUL 2026		 Saturday
11 JUL 2026
Low 78° Low 78° Low 79° Low 80° Low 79°
High 96° High 96° High 95° High 94° High 94°
PORT LAVACA, TX 77979 weather forecast Day 4 PORT LAVACA, TX 77979 weather forecast Day 5 PORT LAVACA, TX 77979 weather forecast Day 6 PORT LAVACA, TX 77979 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
19% Rain		 Partly Cloudy
22% Rain		 Partly Cloudy
23% Rain		 Partly Cloudy
23% Rain		 Partly Cloudy
28% Rain
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