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

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

41°F

5°C

Humidity 94%
Wind Speed NE 3 mph
Barometer 30.20 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 9 Dec 5:15 am CST
Extended Forecast for

Port Lavaca TX

  • Today

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

    High: 66 °F

    Sunny

  • Tonight

    Tonight: 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 7 mph becoming south southeast in the afternoon.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. Southeast wind around 5 mph becoming light and variable.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 72. North northeast wind 5 to 7 mph becoming south southeast in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. Southeast wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77. South wind 5 to 11 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. Southeast wind around 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76. Southeast wind 6 to 11 mph.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 66. Light and variable wind becoming southeast around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 53. South wind around 6 mph.
Wednesday
Sunny, with a high near 75. West southwest wind 5 to 7 mph becoming south southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 53. Southeast wind around 5 mph becoming light and variable.
Thursday
Mostly sunny, with a high near 72. North northeast wind 5 to 7 mph becoming south southeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 60. Southeast wind around 6 mph.
Friday
Mostly sunny, with a high near 77. South wind 5 to 11 mph.
Friday Night
Partly cloudy, with a low around 63. Southeast wind around 7 mph.
Saturday
Mostly sunny, with a high near 76. Southeast wind 6 to 11 mph.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
A 20 percent chance of showers. Mostly cloudy, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
Last Update:
4:16 am CST Dec 9, 2025
Forecast Valid:
5am CST Dec 9, 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