Severe Weather in the Central Plains; Fire Concerns in the Southern High Plains and Southwest; Late-Season Mountain Snow

Severe storms, including large hail, wind, and perhaps a couple of tornadoes, are possible in the central Plains. Dry, windy conditions and lightning from dry thunderstorms may produce hazardous fire conditions in the Southwest and southern High Plains. Late-season snow is expected in the Northwest and the Great Basin. Heat is spreading across the eastern U.S.. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

A Few Clouds

85°F

29°C

Humidity 63%
Wind Speed S 15 G 21 mph
Barometer 29.92 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 16 May 11:55 am CDT
Extended Forecast for

3 Miles SSW Port Lavaca TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 88. Heat index values as high as 95. South southeast wind around 18 mph, with gusts as high as 24 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 78. Southeast wind 13 to 17 mph, with gusts as high as 24 mph.

    Low: 78 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 89. Heat index values as high as 102. South southeast wind 15 to 22 mph, with gusts as high as 29 mph.

    High: 89 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 80. Southeast wind 15 to 18 mph, with gusts as high as 24 mph.

    Low: 80 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 90. South southeast wind 15 to 22 mph, with gusts as high as 28 mph.

    High: 90 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 80. Southeast wind 13 to 20 mph, with gusts as high as 28 mph.

    Low: 80 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 89. South southeast wind 13 to 17 mph, with gusts as high as 23 mph.

    High: 89 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 78. Southeast wind 10 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%.

    Low: 78 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86. Southeast wind 10 to 15 mph, with gusts as high as 18 mph.

    High: 86 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 88. Heat index values as high as 95. South southeast wind around 18 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 78. Southeast wind 13 to 17 mph, with gusts as high as 24 mph.
Sunday
Mostly cloudy, with a high near 89. Heat index values as high as 102. South southeast wind 15 to 22 mph, with gusts as high as 29 mph.
Sunday Night
Mostly cloudy, with a low around 80. Southeast wind 15 to 18 mph, with gusts as high as 24 mph.
Monday
Partly sunny, with a high near 90. South southeast wind 15 to 22 mph, with gusts as high as 28 mph.
Monday Night
Mostly cloudy, with a low around 80. Southeast wind 13 to 20 mph, with gusts as high as 28 mph.
Tuesday
Partly sunny, with a high near 89. South southeast wind 13 to 17 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 78. Southeast wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Southeast wind 10 to 15 mph, with gusts as high as 18 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 77.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Port Lavaca TX
 28.58°N 96.64°W
1:46 am CDT May 16, 2026
12pm CDT May 16, 2026-6pm CDT May 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database