Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Overcast

55°F

13°C

Humidity 100%
Wind Speed N 15 G 24 mph
Barometer 30.16 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 19 Apr 6:35 am CDT
Extended Forecast for

7 Miles SE Port Lavaca TX

Coastal Flood Advisory until April 19, 07:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory until April 19, 07:00pm

    NOW until 7:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 70 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers between 2am and 4am, then a chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 62. Northeast wind 8 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am.  Mostly cloudy, with a high near 73. Northeast wind 10 to 17 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. East wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 67 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 76. East southeast wind 10 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. East southeast wind 7 to 14 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 80. Southeast wind 6 to 15 mph, with gusts as high as 18 mph.

    High: 80 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 70. Southeast wind around 15 mph, with gusts as high as 18 mph.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

Today
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 11am. Mostly cloudy, with a high near 70. East northeast wind 17 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Tonight
A slight chance of showers between 2am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 62. Northeast wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 73. Northeast wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. East southeast wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East southeast wind 7 to 14 mph, with gusts as high as 20 mph.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind 6 to 15 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 70. Southeast wind around 15 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 81. South southeast wind 13 to 20 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 72.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Friday Night
Mostly cloudy, with a low around 70.
Saturday
Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SE Port Lavaca TX
 28.56°N 96.53°W
1:46 am CDT Apr 19, 2026
6am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
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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