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

Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

60°F

16°C

Humidity 50%
Wind Speed NE 10 mph
Barometer 30.23 in
Dewpoint 41°F (5°C)
Visibility 7.00 mi
Last update 8 Dec 4:35 pm CST
Extended Forecast for

Port Lavaca TX

  • Tonight

    Tonight: Clear, with a low around 42. North northeast wind 3 to 6 mph.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. South wind around 6 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. West southwest wind 5 to 8 mph becoming south in the afternoon.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. South southeast wind around 6 mph becoming light and variable.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. North northeast wind 5 to 8 mph becoming south in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. South southeast wind around 6 mph.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 77. South wind 6 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 61. Southeast wind around 8 mph.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 42. North northeast wind 3 to 6 mph.
Tuesday
Sunny, with a high near 66. Light and variable wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 53. South wind around 6 mph.
Wednesday
Sunny, with a high near 75. West southwest wind 5 to 8 mph becoming south in the afternoon.
Wednesday Night
Mostly clear, with a low around 55. South southeast wind around 6 mph becoming light and variable.
Thursday
Mostly sunny, with a high near 73. North northeast wind 5 to 8 mph becoming south in the afternoon.
Thursday Night
Mostly clear, with a low around 61. South southeast wind around 6 mph.
Friday
Mostly sunny, with a high near 77. South wind 6 to 10 mph.
Friday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 61. Southeast wind around 8 mph.
Saturday
A 20 percent chance of showers before noon. Partly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 59.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 59.
Monday
A 20 percent chance of showers. Mostly cloudy, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
Last Update:
11:26 am CST Dec 8, 2025
Forecast Valid:
4pm CST Dec 8, 2025-6pm CST Dec 15, 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