Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Partly Cloudy

95°F

35°C

Humidity 55%
Wind Speed SW 5 mph
Barometer 30.01 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index109°F (43°C)
Last update 3 Aug 11:35 am CDT
Extended Forecast for

7 Miles NW Port O Connor TX

  • Today

    Today: Mostly sunny, with a high near 91. Heat index values as high as 105. North northeast wind 6 to 10 mph becoming south southeast in the afternoon.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 82. South wind 6 to 10 mph.

    Low: 82 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Sunny, with a high near 90. Heat index values as high as 103. South southwest wind 5 to 10 mph becoming northeast in the morning.

    High: 90 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am, then a slight chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 81. Southeast wind 6 to 10 mph.  Chance of precipitation is 20%.

    Low: 81 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 89. Light south southeast wind becoming east southeast 5 to 10 mph in the morning.

    High: 89 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 81. Southeast wind 6 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm.  Sunny, with a high near 90. South southeast wind 5 to 10 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 82. South southeast wind 7 to 10 mph.

    Low: 82 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. South southeast wind 6 to 11 mph.

    High: 89 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 91. Heat index values as high as 105. North northeast wind 6 to 10 mph becoming south southeast in the afternoon.
Tonight
Mostly clear, with a low around 82. South wind 6 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 90. Heat index values as high as 103. South southwest wind 5 to 10 mph becoming northeast in the morning.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 81. Southeast wind 6 to 10 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Light south southeast wind becoming east southeast 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 81. Southeast wind 6 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 90. South southeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 82. South southeast wind 7 to 10 mph.
Thursday
Sunny, with a high near 89. South southeast wind 6 to 11 mph.
Thursday Night
Mostly clear, with a low around 82.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 82.
Saturday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NW Port O Connor TX
 28.51°N 96.48°W
10:36 am CDT Aug 3, 2025
11am CDT Aug 3, 2025-6pm CDT Aug 9, 2025
 
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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