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

Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

Hazardous Weather Conditions

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

A Few Clouds

95°F

35°C

Humidity 49%
Wind Speed S 9 mph
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 23 Aug 1:55 pm CDT
Extended Forecast for

3 Miles NNW Calhoun County Airport TX

Heat Advisory until August 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 23, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. South wind 5 to 11 mph.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Heat index values as high as 111. West southwest wind 5 to 13 mph becoming southeast in the afternoon.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. South wind 6 to 13 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. South southwest wind 5 to 13 mph.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 78. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.

    Low: 78 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97. Light south southwest wind becoming south southeast 6 to 11 mph in the morning.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 77. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.

    Low: 77 °F

    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 110. Southeast wind 8 to 11 mph.
Tonight
Mostly clear, with a low around 76. South wind 5 to 11 mph.
Monday
Sunny and hot, with a high near 97. Heat index values as high as 111. West southwest wind 5 to 13 mph becoming southeast in the afternoon.
Monday Night
Mostly clear, with a low around 77. South wind 6 to 13 mph.
Tuesday
Sunny, with a high near 96. South southwest wind 5 to 13 mph.
Tuesday Night
Clear, with a low around 78. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.
Wednesday
Sunny and hot, with a high near 97. Light south southwest wind becoming south southeast 6 to 11 mph in the morning.
Wednesday Night
Clear, with a low around 77. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.
Thursday
Sunny and hot, with a high near 98. Southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 78.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 77.
Saturday
Sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Calhoun County Airport TX
 28.69°N 96.69°W
Last Update:
1:46 pm CDT Aug 23, 2026
Forecast Valid:
2pm CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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