Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

76°F

24°C

Humidity 93%
Wind Speed SE 6 mph
Barometer 30.03 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 11 Oct 8:15 am CDT
Extended Forecast for

Port Lavaca TX

Coastal Flood Advisory October 11, 08:32am until October 13, 01:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 11, 08:32am until October 13, 01:00am

    NOW until 1:00am Tue

    Coastal Flood Advisory

  • Today

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 77. Southeast wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 77 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: A 50 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 90. Heat index values as high as 106. South southeast wind 7 to 14 mph, with gusts as high as 20 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 7pm.  Partly cloudy, with a low around 78. Southeast wind 7 to 10 mph.

    Low: 78 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 90. South southeast wind 6 to 15 mph, with gusts as high as 21 mph.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 90. South southeast wind 8 to 16 mph, with gusts as high as 23 mph.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. Southeast wind 10 to 15 mph, with gusts as high as 22 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 88. Heat index values as high as 97. Southeast wind 8 to 16 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 77. Southeast wind 8 to 14 mph, with gusts as high as 22 mph.
Columbus Day
A 50 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 106. South southeast wind 7 to 14 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 78. Southeast wind 7 to 10 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South southeast wind 6 to 15 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 78. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. South southeast wind 8 to 16 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 77. Southeast wind 10 to 15 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 87. Southeast wind 9 to 15 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 75.
Friday
A 20 percent chance of showers. Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 78. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
1:46 am CDT Oct 11, 2026
8am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database