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
6:55 AM CDT JUN 13, 2026
Clear
Light Rain
79°F
Feels Like: 84°F
Dewpoint: 79°F
Rel. Hum.: 100%
Visibility: 7 miles
Wind: ESE at 5 mph
Pressure: 29.95 inches
Last 72 hours

Local Area Snow Depth

Texas Current Weather

Texas MOS Forecast Weather


Weather Map

(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
TODAY
Sunny this morning, then partly cloudy with a slight chance of showers and thunderstorms this afternoon. Highs around 90. Southeast winds 10 to 15 mph. Chance of rain 20 percent.
TONIGHT
Partly cloudy. Lows in the lower 80s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
SUNDAY
Partly cloudy with a chance of showers and thunderstorms. Highs around 90. Southeast winds 10 to 15 mph. Chance of rain 50 percent.
SUNDAY NIGHT
Partly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows around 80. Southeast winds 10 to 15 mph, diminishing to 5 to 10 mph after midnight. Chance of rain 60 percent.
MONDAY
A chance of thunderstorms. Showers, mainly in the morning. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 80 percent.
MONDAY NIGHT
A chance of thunderstorms. Showers. Lows in the upper 70s. Chance of rain 90 percent.
TUESDAY
A chance of thunderstorms. Showers, mainly in the morning. Highs in the mid 80s. Chance of rain 90 percent.
TUESDAY NIGHT
Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 70s. Chance of rain 70 percent.
WEDNESDAY
Mostly cloudy. A chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 50 percent.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers after midnight. Lows in the lower 80s. Chance of rain 40 percent.
THURSDAY
Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly cloudy in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 110.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 80s.
JUNETEENTH
Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 90s. Heat index values up to 110.

  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 PM CDT  6/12/2026
Saturday
13 JUN 2026		 PORT LAVACA, TX 77979 weather forecast Day 1, 0 hours 1 AM 82° 91° Partly Cloudy 2%

 0% Thunder
( 6% severe)		 SSE   8 88% 78°
Low 78° PORT LAVACA, TX 77979 weather forecast Day 1, 3 hours 4 AM 80° 86° Partly Cloudy SSE   7 91% 77°
High 91° PORT LAVACA, TX 77979 weather forecast Day 1, 6 hours 7 AM 79° 83° Partly Cloudy 21%
RAIN
<.01 in		 0% Thunder
( 23% severe)		 SE   7 94% 77°

Partly Cloudy

Chance of Rain

 PORT LAVACA, TX 77979 weather forecast Day 1, 9 hours 10 AM 87° 99° Partly Cloudy SE   12 72% 77°
PORT LAVACA, TX 77979 weather forecast Day 1, 12 hours 1 PM 89° 103° Mostly Cloudy 20%
RAIN
.1–.25 in		 0% Thunder
( 36% severe)		 SE   16 70% 78°
PORT LAVACA, TX 77979 weather forecast Day 1, 15 hours 4 PM 89° 103° Partly Cloudy SE   16 70% 78°
PORT LAVACA, TX 77979 weather forecast Day 1, 18 hours 7 PM 87° 101° Partly Cloudy 4%

 0% Thunder
( 12% severe)		 SE   16 77% 79°
PORT LAVACA, TX 77979 weather forecast Day 1, 21 hours 10 PM 83° 94° Partly Cloudy SE   13 88% 79°
Sunday
14 JUN 2026		 PORT LAVACA, TX 77979 weather forecast Day 2, 0 hours 1 AM 83° 94° Partly Cloudy 13%
RAIN
<.01 in		 0% Thunder
( 22% severe)		 SE   10 88% 79°
Low 79° PORT LAVACA, TX 77979 weather forecast Day 2, 3 hours 4 AM 81° 89° Partly Cloudy SE   8 91% 78°
High 91° PORT LAVACA, TX 77979 weather forecast Day 2, 6 hours 7 AM 80° 86° Partly Cloudy 36%
RAIN
.25–.5 in		 0% Thunder
( 30% severe)		 SE   8 94% 78°

Mostly Cloudy

Chance of Rain

 PORT LAVACA, TX 77979 weather forecast Day 2, 9 hours 10 AM 86° 100° Partly Cloudy SE   12 80% 79°
PORT LAVACA, TX 77979 weather forecast Day 2, 12 hours 1 PM 89° 106° Mostly Cloudy 33%
RAIN
.5–1 in		 0% Thunder
( 49% severe)		 SE   15 75% 80°
PORT LAVACA, TX 77979 weather forecast Day 2, 15 hours 4 PM 89° 105° Mostly Cloudy SE   15 73% 79°
PORT LAVACA, TX 77979 weather forecast Day 2, 18 hours 7 PM 87° 103° Mostly Cloudy 7%

 0% Thunder
( 23% severe)		 SE   14 80% 80°
PORT LAVACA, TX 77979 weather forecast Day 2, 21 hours 10 PM 83° 95° Partly Cloudy SE   10 91% 80°

CALHOUN CNTY ARPT, TX extended weather forecast
Monday
15 JUN 2026		 Tuesday
16 JUN 2026		 Wednesday
17 JUN 2026		 Thursday
18 JUN 2026		 Friday
19 JUN 2026
Low 80° Low 78° Low 80° Low 83° Low 82°
High 91° High 91° High 92° High 93° High 93°
PORT LAVACA, TX 77979 weather forecast Day 3 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
Overcast
57% Rain		 Overcast
73% Rain		 Overcast
36% Rain		 Overcast
36% Rain		 Overcast
45% Rain
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