PORT LAVACA, TX 77979 Weather Forecast & Current Conditions

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CALHOUN CNTY ARPT, TX
Current Weather

9:15 PM CDT SEP 17, 2025
Clear
81°F
Feels Like: 85°F
Dewpoint: 72°F
Rel. Hum.: 74%
Visibility: 10 miles
Wind: SE at 6 mph
Pressure: 29.99 inches
Last 72 hours

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PORT LAVACA, TX 77979
Weather Forecast

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Snow Depth pages
TONIGHT
Partly cloudy this evening, then becoming mostly clear. Lows in the upper 70s. Southeast winds 5 to 10 mph.
THURSDAY
Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. East winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Chance of rain 20 percent.
THURSDAY NIGHT
Mostly clear. Lows in the mid 70s. Southeast winds 10 to 15 mph, becoming east 5 to 10 mph after midnight.
FRIDAY
Sunny. A slight chance of showers in the afternoon. Highs around 90. Northeast winds 5 to 10 mph, increasing to east 10 to 15 mph in the afternoon. Chance of rain 20 percent.
FRIDAY NIGHT
Mostly clear. A slight chance of showers after midnight. Lows in the mid 70s. Southeast winds 10 to 15 mph, becoming east 5 to 10 mph after midnight. Chance of rain 20 percent.
SATURDAY
Sunny with a chance of showers. Highs in the upper 80s. Chance of rain 30 percent.
SATURDAY NIGHT
Mostly clear. Lows in the mid 70s.
SUNDAY
Sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.
SUNDAY NIGHT
Mostly clear. Lows in the upper 70s.
MONDAY
Sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.
MONDAY NIGHT
Partly cloudy. A chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of rain 40 percent.
TUESDAY
Partly cloudy with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
TUESDAY NIGHT
Partly cloudy. A chance of showers. Lows in the mid 70s. Chance of rain 50 percent.

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  7:00 AM CDT  9/17/2025
Wednesday
17 SEP 2025
PORT LAVACA, TX 77979 weather forecast Day 1, 12 hours 1 PM 94° 102° Clear 4%

0% Thunder
( 18% severe)
ESE   9 49% 72°
High 95° PORT LAVACA, TX 77979 weather forecast Day 1, 15 hours 4 PM 94° 101° Partly Cloudy ESE   12 47% 71°
Partly Cloudy



PORT LAVACA, TX 77979 weather forecast Day 1, 18 hours 7 PM 86° 93° Partly Cloudy 1%

0% Thunder
( 3% severe)
SE   9 65% 73°
PORT LAVACA, TX 77979 weather forecast Day 1, 21 hours 10 PM 80° 84° Partly Cloudy SSE   5 79% 73°
Thursday
18 SEP 2025
PORT LAVACA, TX 77979 weather forecast Day 2, 0 hours 1 AM 77° 78° Partly Cloudy 2%

0% Thunder
( 4% severe)
SSE   1 87% 73°
Low 74° PORT LAVACA, TX 77979 weather forecast Day 2, 3 hours 4 AM 76° 76° Partly Cloudy NE   1 87% 72°
High 96° PORT LAVACA, TX 77979 weather forecast Day 2, 6 hours 7 AM 75° 75° Partly Cloudy 4%

0% Thunder
( 6% severe)
NE   2 94% 73°

Partly Cloudy



PORT LAVACA, TX 77979 weather forecast Day 2, 9 hours 10 AM 87° 99° Partly Cloudy ENE   6 72% 77°
PORT LAVACA, TX 77979 weather forecast Day 2, 12 hours 1 PM 93° 103° Partly Cloudy 8%

0% Thunder
( 17% severe)
ESE   10 54% 74°
PORT LAVACA, TX 77979 weather forecast Day 2, 15 hours 4 PM 92° 101° Partly Cloudy ESE   12 54% 73°
PORT LAVACA, TX 77979 weather forecast Day 2, 18 hours 7 PM 84° 90° Partly Cloudy 1%

0% Thunder
( 3% severe)
ESE   10 70% 73°
PORT LAVACA, TX 77979 weather forecast Day 2, 21 hours 10 PM 80° 84° Partly Cloudy ESE   5 79% 73°
Friday
19 SEP 2025
PORT LAVACA, TX 77979 weather forecast Day 3, 0 hours 1 AM 77° 78° Clear 2%

0% Thunder
( 3% severe)
ESE   1 85% 72°
Low 73° PORT LAVACA, TX 77979 weather forecast Day 3, 3 hours 4 AM 75° 75° Partly Cloudy ENE   2 90% 72°
High 96° PORT LAVACA, TX 77979 weather forecast Day 3, 6 hours 7 AM 74° 74° Partly Cloudy 8%

0% Thunder
( 5% severe)
NE   3 93% 72°

Partly Cloudy



PORT LAVACA, TX 77979 weather forecast Day 3, 9 hours 10 AM 86° 96° Clear ENE   7 72% 76°
PORT LAVACA, TX 77979 weather forecast Day 3, 15 hours 1 PM 93° 102° Clear 14%
RAIN
<.01 in
0% Thunder
( 15% severe)
E   8 52% 73°
PORT LAVACA, TX 77979 weather forecast Day 3, 18 hours 4 PM 93° 101° Partly Cloudy ESE   10 51% 72°
PORT LAVACA, TX 77979 weather forecast Day 3, 21 hours 7 PM 85° 92° Clear     ESE   9 67% 73°

CALHOUN CNTY ARPT, TX extended weather forecast

Saturday
20 SEP 2025
Sunday
21 SEP 2025
Monday
22 SEP 2025
Tuesday
23 SEP 2025
Wednesday
24 SEP 2025
Low 73° Low 75° Low 75° Low 68° Low 71°
High 94° High 93° High 92° High 90° High 90°
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
16% Rain
Partly Cloudy
31% Rain
Mostly Cloudy
57% Rain
Overcast
65% Rain
Mostly Cloudy
43% Rain
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