Showers and Thunderstorms from the Great Lakes into the Southern Plains

Frontal boundary and wave of low pressure will keep an active weather pattern from the Great Lakes region through the southern Plains the next couple of days. Isolated instances of severe thunderstorms and flash flooding are possible. Meanwhile, as summer comes to a close, above normal temperatures continue for central and eastern U.S. - especially for most of Puerto Rico with excessive heat. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

96°F

36°C

Humidity	51%
Wind Speed	S 9 G 17 mph
Barometer	29.94 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	108°F (42°C)
Last update	21 Sep 1:15 pm CDT

More Information:

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

Extended Forecast for

Port Lavaca TX

This Afternoon
High: 85 °F
Chance
T-storms
Tonight
Low: 80 °F
Mostly Clear
then Slight
Chance
T-storms
Monday
High: 88 °F
Chance
T-storms
Monday Night
Low: 80 °F
Mostly Clear
then Slight
Chance
Showers
Tuesday
High: 89 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 81 °F
Slight Chance
T-storms then
Slight Chance
Showers
Wednesday
High: 88 °F
Showers
Likely
Wednesday Night
Low: 76 °F
Chance
T-storms then
Showers
Likely
Thursday
High: 85 °F
Chance
T-storms

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms, mainly before 5pm. Mostly sunny, with a high near 85. Heat index values as high as 97. Southeast wind 14 to 16 mph.

Tonight

A slight chance of showers and thunderstorms between 1am and 2am. Mostly clear, with a low around 80. South southeast wind 9 to 15 mph. Chance of precipitation is 20%.

Monday

A 40 percent chance of showers and thunderstorms, mainly before 3pm. Sunny, with a high near 88. Heat index values as high as 104. South southeast wind 8 to 15 mph.

Monday Night

A 20 percent chance of showers after 1am. Mostly clear, with a low around 80. Southeast wind 11 to 14 mph.

Tuesday

A chance of showers, with thunderstorms also possible after 10am. Sunny, with a high near 89. South wind 10 to 16 mph. Chance of precipitation is 40%.

Tuesday Night

A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Mostly clear, with a low around 81. South southeast wind 11 to 15 mph. Chance of precipitation is 20%.

Wednesday

Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. South wind 9 to 11 mph. Chance of precipitation is 60%.

Wednesday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 76. South wind 8 to 10 mph becoming west after midnight. Chance of precipitation is 60%.

Thursday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. North wind around 11 mph.

Thursday Night

A 30 percent chance of showers. Partly cloudy, with a low around 74.

Friday

A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.

Friday Night

A 20 percent chance of showers. Mostly clear, with a low around 73.

Saturday

A 20 percent chance of showers. Sunny, with a high near 84.