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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair

82°F

28°C

Humidity 94%
Wind Speed SE 7 mph
Barometer 29.94 in
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 12 Oct 8:55 pm CDT
Extended Forecast for

Port O Connor TX

Coastal Flood Advisory October 12, 09:14pm until October 13, 01:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 12, 09:14pm until October 13, 01:00am

    NOW until 1:00am Tue

    Coastal Flood Advisory

  • Tonight

    Low: 81 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Heat index values as high as 105. South southeast wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers before 7pm. Clear, then becoming mostly cloudy toward daybreak, with a low around 81. South southeast wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 81 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Heat index values as high as 98. Southeast wind 11 to 16 mph, with gusts as high as 21 mph.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. Southeast wind 11 to 15 mph, with gusts as high as 22 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. East southeast wind around 11 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. East wind 7 to 13 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Northeast wind 10 to 18 mph, with gusts as high as 22 mph.

    High: 84 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 81. South southeast wind around 11 mph, with gusts as high as 18 mph.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Heat index values as high as 105. South southeast wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Tuesday Night
A 10 percent chance of showers before 7pm. Clear, then becoming mostly cloudy toward daybreak, with a low around 81. South southeast wind 11 to 14 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 87. Heat index values as high as 98. Southeast wind 11 to 16 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 79. Southeast wind 11 to 15 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 86. East southeast wind around 11 mph.
Thursday Night
Mostly clear, with a low around 76. East wind 7 to 13 mph.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Northeast wind 10 to 18 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 70. North wind 20 to 24 mph, with gusts as high as 31 mph.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 79.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port O Connor TX
 28.44°N 96.43°W
Last Update:
1:46 pm CDT Oct 12, 2026
Forecast Valid:
9pm CDT Oct 12, 2026-6pm CDT Oct 19, 2026
 
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