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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Partly Cloudy

77°F

25°C

Humidity 69%
Wind Speed N 8 mph
Barometer 29.88 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 7 Dec 1:15 pm CST
Extended Forecast for

Port Lavaca TX

Wind Advisory December 7, 09:00pm until December 8, 06:00am
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. North wind 14 to 23 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. North wind 8 to 15 mph, with gusts as high as 21 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 43. Northeast wind around 6 mph.

    Low: 43 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66. Light and variable wind becoming south 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. Southwest wind 6 to 11 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. South wind around 7 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Southwest wind 6 to 11 mph.

    High: 77 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 77. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 44. North wind 14 to 23 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 63. North wind 8 to 15 mph, with gusts as high as 21 mph.
Monday Night
Clear, with a low around 43. Northeast wind around 6 mph.
Tuesday
Sunny, with a high near 66. Light and variable wind becoming south 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. Southwest wind 6 to 11 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind around 7 mph.
Thursday
Sunny, with a high near 77. Southwest wind 6 to 11 mph.
Thursday Night
Mostly clear, with a low around 57.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
Last Update:
11:41 am CST Dec 7, 2025
Forecast Valid:
1pm CST Dec 7, 2025-6pm CST Dec 13, 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