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
9:35 PM CDT SEP 7, 2026
Clear 84°F
Feels Like:	98°F
Dewpoint:	81°F
Rel. Hum.:	91%
Visibility:	10 miles
Wind:	SSE at 8 mph
Pressure:	29.92 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 2026 Hurricanes	PORT LAVACA, TX 77979 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly clear. Lows in the lower 80s. Southeast winds 10 to 15 mph, becoming south 5 to 10 mph after midnight.

TUESDAY
Sunny in the morning, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the mid 90s. South winds around 5 mph, increasing to southeast in the afternoon. Chance of rain 40 percent. Heat index values up to 110.

TUESDAY NIGHT
Mostly clear. Lows around 80. Southeast winds 5 to 10 mph.

WEDNESDAY
Sunny in the morning, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the lower 90s. Southeast winds around 5 mph, increasing to 5 to 10 mph in the afternoon. Chance of rain 50 percent.

WEDNESDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows around 80. Southeast winds 5 to 10 mph, becoming south after midnight. Chance of rain 20 percent.

THURSDAY
Partly cloudy with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent.

THURSDAY NIGHT
Mostly clear. Lows in the lower 80s.

FRIDAY
Partly cloudy in the morning, then becoming sunny. Highs in the lower 90s.

FRIDAY NIGHT
Mostly clear. Lows in the lower 80s.

SATURDAY
Sunny. Highs in the lower 90s. Heat index values up to 110.

SATURDAY NIGHT
Mostly clear. Lows in the lower 80s.

SUNDAY
Partly cloudy. A chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 30 percent.

SUNDAY NIGHT
Mostly clear. 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 9/ 7/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
7 SEP 2026

1 PM

94°

107°

Partly Cloudy

5%

0% Thunder
( 29% severe)

SSE 6

56%

76°

High 96°

4 PM

95°

108°

Partly Cloudy

SE 10

54%

76°

Partly Cloudy

7 PM

90°

103°

Clear

1%

0% Thunder
( 7% severe)

SSE 10

66%

77°

10 PM

83°

95°

Clear

SSE 6

91%

80°

Tuesday
8 SEP 2026

1 AM

81°

90°

Partly Cloudy

3%

0% Thunder
( 10% severe)

S 3

97%

80°

Low 78°

4 AM

80°

87°

Partly Cloudy

SSW 2

97%

79°

High 96°

7 AM

79°

84°

Partly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 19% severe)

CALM

97%

78°

Partly Cloudy

10 AM

89°

105°

Partly Cloudy

CALM

73%

79°

1 PM

93°

107°

Partly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 31% severe)

SE 7

60%

77°

4 PM

94°

109°

Partly Cloudy

SE 10

58%

77°

7 PM

89°

103°

Clear

0%

0% Thunder
( 8% severe)

SE 10

70%

78°

10 PM

83°

95°

Clear

SE 7

91%

80°

Wednesday
9 SEP 2026

1 AM

81°

89°

Clear

6%

0% Thunder
( 18% severe)

SSE 3

94%

79°

Low 77°

4 AM

80°

87°

Partly Cloudy

CALM

97%

79°

High 95°

7 AM

78°

81°

Partly Cloudy

33%
RAIN
.01–.1 in

0% Thunder
( 25% severe)

CALM

100%

78°

Partly Cloudy

Chance of Rain

10 AM

87°

101°

Partly Cloudy

CALM

77%

79°

1 PM

92°

108°

Partly Cloudy

36%
RAIN
.1–.25 in

0% Thunder
( 37% severe)

SE 7

64%

78°

4 PM

92°

106°

Partly Cloudy

SE 9

62%

77°

7 PM

88°

101°

Partly Cloudy

SE 9

72%

78°


CALHOUN CNTY ARPT, TX extended weather forecast
Thursday 10 SEP 2026	Friday 11 SEP 2026	Saturday 12 SEP 2026	Sunday 13 SEP 2026	Monday 14 SEP 2026
Low 78°	Low 80°	Low 79°	Low 79°	Low 79°
High 97°	High 96°	High 95°	High 94°	High 94°

Partly Cloudy 28% Rain	Partly Cloudy 38% Rain	Partly Cloudy 24% Rain	Partly Cloudy 24% Rain	Partly Cloudy 28% Rain

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