Port Lavaca, TX Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Port Lavaca, TX.

Current Conditions — Port Lavaca, TX

VICTORIA (KVCT)

Mostly Cloudy

80.6 F
Humidity:58%
Wind Speed:S 15.0 mph
Barometer:29.96 in
Dewpoint:64.4 F
Visibility:10.00 mi
Precip:--
Heat Index:82.2 F
Wind Chill:NA
May 4 2026, 12:05 PM CDT
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5-Day Forecast — Port Lavaca, TX

Monday

High 82 °F
Mostly Cloudy
Monday
Night
Low 73 °F
Mostly Cloudy
Tuesday

High 86 °F
Mostly Cloudy
Tuesday
Night
Low 77 °F
Mostly Cloudy
Wednesday

High 86 °F
Isolated T-storm
Wednesday
Night
Low 71 °F
Isolated T-storm
Thursday

High 82 °F
Chance of T-storms
Thursday
Night
Low 68 °F
Chance of T-storms
Friday

High 82 °F
Chance of Rain Showers

Detailed Forecast — Port Lavaca, TX

Monday
Mostly Cloudy. High near 82°F. Wind 14 to 15 mph, with gusts as high as 21 mph.
Monday Night
Mostly Cloudy. Low around 73°F. Wind 12 to 14 mph, with gusts as high as 18 mph.
Tuesday
Mostly Cloudy. High near 86°F. Wind 13 to 20 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly Cloudy. Low around 77°F. Wind 10 to 16 mph, with gusts as high as 22 mph.
Wednesday
Isolated T-storm. High near 86°F. Wind 12 to 16 mph, with gusts as high as 22 mph.
Wednesday Night
Isolated T-storm. Low around 71°F. Wind around 6 mph, with gusts as high as 10 mph.
Thursday
Chance of Thunderstorms. High near 82°F. Wind 14 to 16 mph, with gusts as high as 23 mph.
Thursday Night
Chance of Thunderstorms. Low around 68°F. Wind around 10 mph, with gusts as high as 15 mph.
Friday
Chance of Rain Showers. High near 82°F. Wind around 10 mph, with gusts as high as 14 mph.
Friday Night
Isolated T-storm. Low around 68°F. Wind around 5 mph, with gusts as high as 6 mph.
Saturday
Mostly Cloudy. High near 84°F. Wind 10 to 12 mph, with gusts as high as 15 mph.
Saturday Night
Mostly Cloudy. Low around 71°F. Wind around 7 mph, with gusts as high as 10 mph.
Sunday
Isolated T-storm. High near 84°F. Wind around 13 mph, with gusts as high as 16 mph.
TX Radar
Current Radar • TX
Day 1 Outlook • May 4, 2026

Observation History — Port Lavaca, TX

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
12:05 PM CDT S 15.0 10.00 Mostly Cloudy -- 80.6 64.4 58% NA 82.2 29.96 1014.6
12:00 PM CDT S 11.5 G 17.3 10.00 Mostly Cloudy -- 78.8 64.4 61% NA 79.3 29.96 1014.6
11:50 AM CDT S 15.0 10.00 Partly Cloudy -- 78.8 62.6 58% NA 79.2 29.96 1014.6
11:45 AM CDT 10.4 10.00 Partly Cloudy -- 80.6 62.6 54% NA 81.9 29.96 1014.6
11:40 AM CDT 15.0 10.00 Partly Cloudy -- 80.6 62.6 54% NA 81.9 29.96 1014.6
11:35 AM CDT S 11.5 10.00 Partly Cloudy -- 80.6 64.4 58% NA 82.2 29.96 1014.6
11:30 AM CDT 15.0 10.00 Partly Cloudy -- 80.6 64.4 58% NA 82.2 29.97 1014.9
11:25 AM CDT S 13.8 G 19.6 10.00 Partly Cloudy -- 78.8 62.6 58% NA 79.2 29.97 1014.9
11:20 AM CDT S 11.5 10.00 Partly Cloudy -- 80.6 62.6 54% NA 81.9 29.97 1014.9
11:10 AM CDT S 10.4 10.00 Partly Cloudy -- 78.8 62.6 58% NA 79.2 29.98 1015.2
11:05 AM CDT S 12.7 10.00 Partly Cloudy -- 78.8 62.6 58% NA 79.2 29.98 1015.2
11:00 AM CDT S 12.7 10.00 Partly Cloudy -- 78.8 62.6 58% NA 79.2 29.98 1015.2
10:50 AM CDT S 15.0 10.00 Mostly Cloudy -- 78.8 62.6 58% NA 79.2 29.98 1015.2
10:40 AM CDT 10.00 Mostly Cloudy -- 78.8 62.6 58% NA 79.2 29.98 1015.2
10:35 AM CDT 15.0 G 21.9 10.00 Mostly Cloudy -- 78.8 62.6 58% NA 79.2 29.98 1015.2
10:30 AM CDT S 16.1 10.00 Partly Cloudy -- 78.8 62.6 58% NA 79.2 29.98 1015.2
10:20 AM CDT S 13.8 10.00 Mostly Clear -- 78.8 62.6 58% NA 79.2 29.98 1015.2
10:15 AM CDT S 15.0 10.00 Partly Cloudy -- 75.2 62.6 65% NA 75.6 29.98 1015.2
10:05 AM CDT 10.00 Mostly Clear -- 77.0 62.6 61% NA 77.4 29.97 1014.9
10:00 AM CDT 10.00 Mostly Clear -- 75.2 62.6 65% NA 75.6 29.97 1014.9
09:50 AM CDT S 13.8 G 19.6 10.00 Clear -- 75.2 62.6 65% NA 75.6 29.98 1015.2
09:40 AM CDT 10.00 Clear -- 75.2 62.6 65% NA 75.6 29.98 1015.2
09:35 AM CDT S 12.7 10.00 Clear -- 75.2 62.6 65% NA 75.6 29.98 1015.2
09:25 AM CDT 10.00 Clear -- 73.4 62.6 69% NA 73.8 29.98 1015.2

Regional Weather Observation

VICTORIA (KVCT)

Mostly Cloudy
80.6 F

PALACIOS (KPSX)

Mostly Clear
78.8 F

ROCKPORT (KRKP)

Mostly Clear
80.6 F

WHARTON (KARM)

Mostly Cloudy
78.1 F

BAY CITY (KBYY)

Mostly Cloudy
78.1 F

KENEDY (K2R9)

Mostly Cloudy
78.8 F
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Lightning strike alerts for Port Lavaca, TX