National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Partly Cloudy

90°F

32°C

Humidity 65%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 77°F (25°C)
Visibility 9.00 mi
Heat Index103°F (39°C)
Last update 1 Sep 11:15 am CDT
Extended Forecast for

9 Miles SSW Port O Connor TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Heat index values as high as 102. Northwest wind 5 to 9 mph becoming south southeast in the afternoon.

    High: 89 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 82. South wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 82 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89. Heat index values as high as 105. South southwest wind 9 to 11 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 82. South southeast wind around 13 mph, with gusts as high as 18 mph.

    Low: 82 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89. South southeast wind 8 to 11 mph.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 81. Southeast wind 9 to 11 mph.

    Low: 81 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Southeast wind 7 to 10 mph.

    High: 89 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 81. Southeast wind 7 to 11 mph.

    Low: 81 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89. South southeast wind 5 to 9 mph.

    High: 89 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Heat index values as high as 102. Northwest wind 5 to 9 mph becoming south southeast in the afternoon.
Tonight
Partly cloudy, with a low around 82. South wind 9 to 13 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 89. Heat index values as high as 105. South southwest wind 9 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 82. South southeast wind around 13 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 89. South southeast wind 8 to 11 mph.
Thursday Night
Partly cloudy, with a low around 81. Southeast wind 9 to 11 mph.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Southeast wind 7 to 10 mph.
Friday Night
Mostly clear, with a low around 81. Southeast wind 7 to 11 mph.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89. South southeast wind 5 to 9 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 81.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 81.
Labor Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SSW Port O Connor TX
 28.33°N 96.45°W
Last Update:
1:51 am CDT Sep 1, 2026
Forecast Valid:
11am CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation