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

Heavy Rainfall in South Florida; Active Weather in the West

A stalled front will continue to bring additional heavy rainfall potential over the next few days across southern Florida, with localized and urban flooding possible. A strong Pacific storm will bring scattered showers and thunderstorms across the Northern Great Basin, the Rockies and into the Southwest through Saturday. Heavy rainfall may result in isolated flash flooding near burn scars. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

81°F

27°C

Humidity 79%
Wind Speed E 6 mph
Barometer 30.04 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 10 Sep 11:15 pm CDT
Extended Forecast for

Port Lavaca TX

  • Tonight

    Tonight: Mostly clear, with a low around 76. East northeast wind around 6 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly between noon and 4pm. Sunny, with a high near 92. Heat index values as high as 105. Northeast wind 5 to 14 mph becoming east southeast in the afternoon.

    High: 92 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Clear, with a low around 75. East southeast wind 6 to 14 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93. Heat index values as high as 101. Northeast wind 6 to 15 mph becoming east southeast in the afternoon. Winds could gust as high as 21 mph.

    High: 93 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Clear, with a low around 75. Southeast wind 5 to 13 mph, with gusts as high as 18 mph.

    Low: 75 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 93. East wind 5 to 14 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. Southeast wind 6 to 11 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 92. East southeast wind 5 to 14 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. East southeast wind 5 to 11 mph.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 76. East northeast wind around 6 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly between noon and 4pm. Sunny, with a high near 92. Heat index values as high as 105. Northeast wind 5 to 14 mph becoming east southeast in the afternoon.
Thursday Night
Clear, with a low around 75. East southeast wind 6 to 14 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93. Heat index values as high as 101. Northeast wind 6 to 15 mph becoming east southeast in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Clear, with a low around 75. Southeast wind 5 to 13 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 93. East wind 5 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 75. Southeast wind 6 to 11 mph.
Sunday
Mostly sunny, with a high near 92. East southeast wind 5 to 14 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 75. East southeast wind 5 to 11 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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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:
10:36 pm CDT Sep 10, 2025
Forecast Valid:
11pm CDT Sep 10, 2025-6pm CDT Sep 17, 2025
 
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