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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley this afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Mostly Cloudy

78°F

26°C

Humidity 80%
Wind Speed E 18 G 24 mph
Barometer 30.10 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 9 Apr 12:55 pm CDT
Extended Forecast for

Port Lavaca TX

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 80. East southeast wind 14 to 17 mph, with gusts as high as 21 mph.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 68. East southeast wind 7 to 14 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 79. East southeast wind 6 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. East southeast wind 9 to 14 mph, with gusts as high as 18 mph.

    Low: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 81. Southeast wind 9 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Southeast wind 11 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southeast wind 11 to 20 mph, with gusts as high as 25 mph.

    High: 81 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 71. Southeast wind 10 to 16 mph, with gusts as high as 22 mph.

    Low: 71 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 82. South southeast wind 10 to 18 mph, with gusts as high as 24 mph.

    High: 82 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 80. East southeast wind 14 to 17 mph, with gusts as high as 21 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 68. East southeast wind 7 to 14 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 79. East southeast wind 6 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. East southeast wind 9 to 14 mph, with gusts as high as 18 mph.
Saturday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 81. Southeast wind 9 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Southeast wind 11 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southeast wind 11 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 71. Southeast wind 10 to 16 mph, with gusts as high as 22 mph.
Monday
Mostly cloudy, with a high near 82. South southeast wind 10 to 18 mph, with gusts as high as 24 mph.
Monday Night
Mostly cloudy, with a low around 71.
Tuesday
Partly sunny, with a high near 82.
Tuesday Night
Mostly cloudy, with a low around 71.
Wednesday
Mostly cloudy, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
Last Update:
10:06 am CDT Apr 9, 2026
Forecast Valid:
1pm CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation