Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

88°F

31°C

Humidity	72%
Wind Speed	S 6 mph
Barometer	30.02 in
Dewpoint	78°F (26°C)
Visibility	10.00 mi
Heat Index	101°F (38°C)
Last update	2 Aug 7:55 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Port Lavaca TX

Tonight
Low: 79 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 93 °F
Slight Chance
T-storms
Sunday Night
Low: 81 °F
Mostly Clear
Monday
High: 93 °F
Chance
T-storms
Monday Night
Low: 79 °F
Slight Chance
T-storms
Tuesday
High: 90 °F
Slight Chance
T-storms
Tuesday Night
Low: 80 °F
Mostly Clear
Wednesday
High: 89 °F
Slight Chance
T-storms
Wednesday Night
Low: 81 °F
Mostly Clear

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 79. South southeast wind 6 to 9 mph.

Sunday

A 20 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Sunny, with a high near 93. Heat index values as high as 112. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 81. South wind 6 to 10 mph.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after 10am. Sunny, with a high near 93. Heat index values as high as 111. Southeast wind 6 to 11 mph. Chance of precipitation is 30%.

Monday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 79. Southeast wind 6 to 10 mph. Chance of precipitation is 20%.

Tuesday

A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a slight chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 90. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 20%.

Tuesday Night

Mostly clear, with a low around 80. Southeast wind 6 to 11 mph.

Wednesday

A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89. Light south wind becoming south southeast 6 to 11 mph in the morning.

Wednesday Night

Mostly clear, with a low around 81. South southeast wind 6 to 11 mph.

Thursday

Sunny, with a high near 89.

Thursday Night

Mostly clear, with a low around 80.

Friday

Sunny, with a high near 90.