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

Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Mostly Cloudy

76°F

24°C

Humidity 98%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 76°F (24°C)
Visibility 7.00 mi
Heat Index75°F (24°C)
Last update 10 Sep 8:15 am CDT
Extended Forecast for

Calhoun County Airport TX

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming southeast 5 to 8 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 77. South southeast wind 5 to 8 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Sunny, with a high near 94. Heat index values as high as 109. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 94 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. South southeast wind 8 to 11 mph, with gusts as high as 18 mph.

    Low: 78 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. South wind 7 to 14 mph, with gusts as high as 20 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. South southeast wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 94 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. Southeast wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95. South southeast wind 5 to 14 mph, with gusts as high as 20 mph.

    High: 95 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming southeast 5 to 8 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 77. South southeast wind 5 to 8 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Sunny, with a high near 94. Heat index values as high as 109. Light and variable wind becoming south 6 to 11 mph in the morning.
Friday Night
Mostly clear, with a low around 78. South southeast wind 8 to 11 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 95. South wind 7 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 78. South southeast wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 78. Southeast wind 6 to 11 mph, with gusts as high as 18 mph.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95. South southeast wind 5 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 78.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 77.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Calhoun County Airport TX
 28.65°N 96.69°W
Last Update:
3:21 am CDT Sep 10, 2026
Forecast Valid:
8am CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation