Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

78°F

26°C

Humidity 95%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 23 Aug 4:35 am CDT
Extended Forecast for

Port Lavaca TX

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 91. Heat index values as high as 103. Light and variable wind becoming east northeast 5 to 8 mph in the morning.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 3am.  Partly cloudy, with a low around 76. East wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 40%.

    Low: 76 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 7am.  Mostly sunny, with a high near 92. Heat index values as high as 106. Light and variable wind becoming east southeast 5 to 10 mph in the morning.

    High: 92 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers, with thunderstorms also possible after 4am.  Mostly clear, with a low around 76. Southeast wind 5 to 8 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms.  Sunny, with a high near 92. Light and variable wind becoming southeast 5 to 10 mph in the morning.

    High: 92 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 78. Southeast wind 5 to 10 mph becoming light south  after midnight.  Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 93. Light south wind becoming southeast 5 to 10 mph in the morning.

    High: 93 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.

    Low: 76 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.
Saturday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91. Heat index values as high as 103. Light and variable wind becoming east northeast 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 76. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 7am. Mostly sunny, with a high near 92. Heat index values as high as 106. Light and variable wind becoming east southeast 5 to 10 mph in the morning.
Sunday Night
A slight chance of showers, with thunderstorms also possible after 4am. Mostly clear, with a low around 76. Southeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 92. Light and variable wind becoming southeast 5 to 10 mph in the morning.
Monday Night
A slight chance of thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. Southeast wind 5 to 10 mph becoming light south after midnight. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Light south wind becoming southeast 5 to 10 mph in the morning.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
12:26 am CDT Aug 23, 2025
4am CDT Aug 23, 2025-6pm CDT Aug 29, 2025
 
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Additional Resources

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