PORT LAVACA, TX 77979 Weather Forecast & Current Conditions

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CALHOUN CNTY ARPT, TX
Current Weather

1:15 AM CST DEC 15, 2025
Clear
37°F
Feels Like: 32°F
Dewpoint: 32°F
Rel. Hum.: 82%
Visibility: 10 miles
Wind: NNW at 6 mph
Pressure: 30.48 inches
Last 72 hours

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PORT LAVACA, TX 77979
Weather Forecast

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REST OF TONIGHT
Mostly clear. Much cooler with lows in the upper 30s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
MONDAY
Partly cloudy. Highs in the mid 50s. Northeast winds 10 to 15 mph, diminishing to 5 to 10 mph in the afternoon.
MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s. East winds around 5 mph.
TUESDAY
Mostly cloudy. Not as cool with highs in the upper 60s. Northeast winds 5 to 10 mph, becoming southeast in the afternoon.
TUESDAY NIGHT
Cloudy. A slight chance of showers and thunderstorms after midnight. Not as cool. Near steady temperature in the mid 60s. Southeast winds 5 to 10 mph. Chance of rain 20 percent.
WEDNESDAY
Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 70s. Chance of rain 40 percent.
WEDNESDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s.
THURSDAY
Partly cloudy in the morning, then clearing. Highs in the mid 70s.
THURSDAY NIGHT
Partly cloudy. Lows in the mid 50s.
FRIDAY
Partly cloudy. Highs in the upper 60s.
FRIDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Near steady temperature in the lower 60s.
SATURDAY
Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 70s.
SATURDAY NIGHT
Partly cloudy. Lows in the lower 60s.

Visible Weather Satellite
PORT LAVACA, TX 77979
Infrared Weather Satellite
PORT LAVACA, TX 77979
NEXRAD Weather Radar
PORT LAVACA, TX 77979

CALHOUN CNTY ARPT, TX 3 hourly weather forecast

weather forecast created  6:00 PM CST 12/14/2025
Monday
15 DEC 2025
PORT LAVACA, TX 77979 weather forecast Day 1, 0 hours 12 AM 45° 40° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   10 71% 36°
Low 38° PORT LAVACA, TX 77979 weather forecast Day 1, 3 hours 3 AM 41° 35° Clear NNE   10 73% 33°
High 58° PORT LAVACA, TX 77979 weather forecast Day 1, 6 hours 6 AM 39° 33° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   9 73% 31°

Partly Cloudy



PORT LAVACA, TX 77979 weather forecast Day 1, 9 hours 9 AM 43° 38° Partly Cloudy NNE   9 60% 30°
PORT LAVACA, TX 77979 weather forecast Day 1, 12 hours 12 PM 51° 49° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   6 42% 29°
PORT LAVACA, TX 77979 weather forecast Day 1, 15 hours 3 PM 57° 57° Partly Cloudy NE   5 34% 29°
PORT LAVACA, TX 77979 weather forecast Day 1, 18 hours 6 PM 51° 51° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   2 50% 33°
PORT LAVACA, TX 77979 weather forecast Day 1, 21 hours 9 PM 48° 47° Partly Cloudy E   1 68% 38°
Tuesday
16 DEC 2025
PORT LAVACA, TX 77979 weather forecast Day 2, 0 hours 12 AM 47° 46° Mostly Cloudy 1%

0% Thunder
( 1% severe)
ENE   1 80% 41°
Low 45° PORT LAVACA, TX 77979 weather forecast Day 2, 3 hours 3 AM 46° 45° Mostly Cloudy NE   3 86% 42°
High 70° PORT LAVACA, TX 77979 weather forecast Day 2, 6 hours 6 AM 47° 45° Mostly Cloudy 1%

0% Thunder
( 1% severe)
NE   5 89% 44°

Mostly Cloudy



PORT LAVACA, TX 77979 weather forecast Day 2, 9 hours 9 AM 56° 55° Mostly Cloudy ENE   6 83% 51°
PORT LAVACA, TX 77979 weather forecast Day 2, 12 hours 12 PM 66° 66° Mostly Cloudy 7%

0% Thunder
( 0% severe)
ESE   8 73% 57°
PORT LAVACA, TX 77979 weather forecast Day 2, 15 hours 3 PM 69° 69° Mostly Cloudy ESE   9 73% 60°
PORT LAVACA, TX 77979 weather forecast Day 2, 18 hours 6 PM 65° 65° Mostly Cloudy 21%
RAIN
.25–.5 in
0% Thunder
( 13% severe)
ESE   7 87% 61°
PORT LAVACA, TX 77979 weather forecast Day 2, 21 hours 9 PM 64° 64° Mostly Cloudy SE   6 93% 62°

CALHOUN CNTY ARPT, TX extended weather forecast

Wednesday
17 DEC 2025
Thursday
18 DEC 2025
Friday
19 DEC 2025
Saturday
20 DEC 2025
Sunday
21 DEC 2025
Low 63° Low 63° Low 47° Low 52° Low 63°
High 74° High 81° High 67° High 79° High 82°
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
82% Rain
Mostly Cloudy
51% Rain
Clear
9% Rain
Partly Cloudy
6% Rain
Partly Cloudy
14% Rain
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